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Everyday Science Paper 2012
[U][B][SIZE="3"][CENTER]PART II[/CENTER][/SIZE][/B][/U]
[B]Q2:[/B] Write briefly about two or more major achievements of each of the following two famous Muslim scientists:- [B]a) [/B]Abu Abdullah Mohammad Bin Musa Al Khwarizmi [B] (05)[/B] [B]b)[/B] Abu Ali Al Hassan Ibn Al Hassan Al Haytham [B] (05)[/B] [B]Q3: [/B] [B]a) [/B]List four or more physical characteristics of the Earth. [B] (05)[/B] [B](b)[/B] Briefly explain how seasons and ocean tides are produced on the Earth? [B] (05)[/B] [B]Q4: [/B] [B](a)[/B] Very briefly explain the difference between Earthquakes, volcanic eruptions, floods and tsunamis. [B] (05)[/B] [B](b)[/B] Briefly explain the difference between Sedimentary and Metamorphic rocks. [B] (05)[/B] [B]Q5:[/B] [B](a) [/B]Very briefly explain the difference between an Insulator, a Conductor, a Semiconductor and a Superconductor. [B] (05)[/B] [B](b)[/B] Briefly explain the difference between a LASER and a Photovoltaic Cell. [B] (05)[/B] [B]Q6: [/B] [B](a) [/B]Briefly explain the difference between an Antibiotic, an Antiviral Drug, a Pesticide and a Vaccine. [B] (05)[/B] [B] (b)[/B] List any two of the three things that the MMR vaccine protects against. List any two other vaccines given to children. [B] (05)[/B] [B]Q7:[/B] [B] (a)[/B] Briefly explain how Photosynthesis works? [B] (05)[/B] [B] (b)[/B] Briefly explain the Nitrogen Cycle in nature. [B] (05)[/B] [B]Q8: (a)[/B] Differentiate between the following: [B] (05)[/B][LIST][*]DNA [*]mRNA (Messenger RNA)[*]Proteins[/LIST][B](b)[/B] Explain how DNA, m RNA and Proteins are interrelated to each other? [B] (05)[/B] [B]Q9 [/B] [B]a) [/B]Explain what is mean by a Balanced Diet? [B] (05)[/B] [B]b)[/B] Give the major function of the following micronutrients: Vitamin A, Vitamin C, Iron, Calcium and Iodine. [B] (05)[/B] [CENTER] ____________________________________________[/CENTER] |
EVERY DAY SCIENCE CSS-2012 OBJECTIVE
MARKS 50 TIME 80 MINS 1) A SCIENTIFIC METHOD WILL SEEK TO EXPLAIN NATURAL EVENTS AND MAKE USEFUL PREDICTION IN A) A HAPHAZARD MANNER B) A MANNER DESIGN TO FIT THE THEORIST,S OR EXPERIMENTER,S BIAS C) A CONSISTENTLY REPRODUCIBLE MANNER D) NONE OF THESE 2) “TRUTH IS THE SOUGHT FOR ITS OWN SAKE. AND THOSE WHO ARE ENGAGED UPON THE QUEST FOR ANYTHING FOR ITS OWN SAKE ARE NOTINTERESTED IN OTHER THINGS. FINDING THE TRUTH IS DIFFICULT AND THE ROAD TO IT IS ROUGH.” THIS WAS STATED BY WHICH KEY FIGURE IN THE DEVELOPMENT OF SCIENTIFIC METHOD IN THE 11TH CENTURY? A) ARISTOTLE B) IBN AL HAYTHAM C) PLATO ` D) NONE OF THESE 3) ABU ABDULLAH MUHAMMAD BIN MUSA AL-KHWARIZMI IS FAMOUS FOR WRITING THE “KITAB AL JABER WAL MUQABLA” IN WHICH HE A) PRESENTED THE FIRST SYSTEMATIC SOLUTION OF LINEAR AND QUADRATIC EQUATIONS B) DELINEATED METHODS OF OPPRESSION & COMPETITION C) C) WROTE THE LAWS OF OPTICS D) NONE OF THESE 4) GALLIEO GALLIES WAS PERESCUTED BY THE CATHOLIC CHURCH FOR SUSPICON OF HOLDING THE VIEW THAT: A) OBJECTS OF DIFFERENT MASSES FELL AT THE SAME VELOCITY B) THE SUN REVOLVES AROUNDS THE MOON C) THE EARTH WAS PROBABLY NOT THE CENTRE OF THE UNIVERSE D) NONE OF THESE 5) THE PROLIFERATION OF EDUCATION AND DISSEMINATION OF KNOWLEDGE IN THE LAST TWO CENTURIES HAS LED TO A FAITH IN SCIENCE THAT: A) CAUSES HUMAN BEINGS TO TURN ON OTHER HUMAN BEINGS B) IS THE MAIN CAUSE OF POVERTY AND WAR C) LEADS TO OPPRESSION OF EDUCATION D) NONE OF THESE 6) SCIENCE ATTEMPTS TO: A) EXPLAINS HOW THE UNIVERSE WORKS BY DICOVERING THE LAWS REGULATING EVERYTHING AROUND US B) USE DICOVERED LAWS TO ENGINEER NEW DEVICES C) BOTH A & B D) NONE OF THESE 7) IBN ZUHR, THE AUTHOR OF AL TAISIR, IS KNOWN AS: A) THE FATHER OF EXPERIMENTAL SURGERY B) THE FOUNDER OF CALCULUS C) A BIOGRAPHER OF PROVINCIAL GOVERNORS D) NONE OF THESE 8) IBN KHALDUN’S MUQQADIMAH IS REGARDED BY MANY AS: A) THE FIRST WORK DEALING WITH A PHILOSOPHY OF HISTORY B) A MINOR FOOTNOTE IN HIS WRITINGS C) A WELL DOCUMENTED TALE OF HIS TRIAL D) NONE OF THESE 9) A PHYSICAL, MATHEMATICAL OR LOGICAL REPRESENTATION OF A NATURAL PHENOMENON IS CALLED A) PHENOMENAL B) A SCIENTIFIC MODEL C) A THEORATICAL POSTULATE D) NONE OF THESE 10) ISSAC NEWTON AND GOTTFRIED LEIBNIZ WORKING INDEPENDENTLY IN THE 17TH CENURY LAID THE FOUNDATION OF CLASSICAL PHYSICS AND ARE KNOWN AS FATHERS OF A) ASTROLOGY B) RELATIVISTIC THEORY C) INTEGRAL & DIFFERENTIAL CALCULUS D) NONE OF THESE 11) A LIGHT YEAR IS A) A YEAR DEVOID OF HEAVY RAINFALL B) THE TIME TAKEN BY LIGHT TO BE GENERATED & PROPAGATED FROM THE CENTRE OF THE SUN TO OUR EARTH C) THE DISTANCE COVERED BY LIGHT IN ONE OF OUR SOLAR YEARS D) NONE OF THESE 12) OUR SUN IS CLASSIFIED AS A) A BLUE GIANT B) A YELLOW DWARF C) SUPERNOVA D) NONE OF THESE 13) THE SUN PRODUCES MOST OF ITS ENERGY BY: A) NUCLEAR FUSION WHICH INVOLVES CONVERTING “H” TO “He” B) NUCLEAR FISSION INVOLVING THE BURNING OF URANIUM & PLUTONIUM C) NUCLEAR FISSION INVOLVING THE COMBINING OF URANIUM AND PALLADIUM D) NONE OF THESE 14) WHICH OF THE FOLLOWING IS THE CORRECT ORDERING OF THE INNER PLANETS ACCORDING TO THEIR ROXIMITY TO THE SUN A) JUPITER,SATURN,URANUS,NEPTUNE B) PHOBOS,DEIMES,EUROPE,TIAS C) MERCURY,VENUS,EARTH,MARS D) NONE OF THESE 15) HOW LONG DOES OUR EARTH TAKES TO TURN ABOUT ITS AXIS A) ONE HOUR B) 23 HOURS C) 24 HOURS D) NONE OF THESE 16) TIDES ARE GENERATED BY A) THE MOVEMENTS OF SHIPS IN THE OCEANS B) THE GRAVITATIONAL EFFECT OF MOON ANA SUN ON OUR EARTH C) THE MOVEMENTS OF THE EARTH AROUND THE SUN D) NONE OF THESE 17) SEASONS ARE GENERATED BY A) THE MOVEMENT OF SUN AROUND COABES OF THE MILKY WAY B) THE MOVEMENT OF THE EARTH AROUND THE SUN C) RELATIVISTIC QUANTIUM ------------------------- D) NONE OF THESE 18) ALTHOUGH THE MASS OF A MAN ON MOON REMAINS SAME AS ON THE EARTH,HE WILL A) BE MUCH HAPPIER THERE B) WEIGH ONE SIXTH AS MUCH C) WEIGH TWICE AS MUCH D) NONE OF THESE 19) IF WE ARE AT SEE LEVEL OUR ATMOSPHERE PRESSES DOWN ON US WITH A PRESSURE OF: A) 1 FPS B) 14.3 FPS C) 35.8 FPS D) NONE OF THESE 20) THE EFFICIENCY OF A MACHINE IS A) ALWAYS GREATER TANH 100% B) ALWAYS LESS THAN 100% C) ALWAYS 100% D) NONE OF THESE 21) A MATERIAL WITH HIGH ELASTICITY A) DOES NOT RETURNS TO ITS ORIGIONAL SHAPE UPON BEING STRETCHED AND THEN RELEASED B) RETURNS AS CLOSE AS POSSIBLE TO ITS ORIGIONAL SHAPE UPON BEING STRETCHED AND THEN RELEASED C) CAN BE STRETCHEDTO INFINITE DISTANCES D) NONE OF THESE 22) MATTER AND ENERGY A) CAN BE CONVERTED FROM ONE TO THE OTHER B) WHEN TAKEN TOGETHER , CONVERTED IN ALL PROCESSESS IN A CLOSED SYSTEM C) BOTH A & B D) NONE OF THESE 23) ELECTRIC CURRENT A) FLOWS FROM A HIGHER POTENTIAL TO LOWER POTENTIAL B) IS CAUSED BY FLOW OF ELECTRONS C) BOTH A & B D) NONE OF THESE 24) ELECTRICITY AND MAGNETISM ARE A) TWO FACETS OF SAME FORCE B) ALWAYS OPPOSED TO EACH OTHER C) BOTH A & B D) NONE OF THESE 25) BALL BEARING HELP WHEELS AND OTHER ROTATING OBJECTS A) MOVE WITHOUT CONSUMING ANY ENERGY B) ROTATE MORE EASILY AND WITH LESS FRICTION C) BOTH A & B D) NONE OF THESE 26) PHOTOGRAPHY WORKS BY A) CAPTURING THE SOULS OF THE OBJECTS BEING PHOTOGRAPHED B) CAPTURING LIGHT REFLECTED FROM THE OBJECT BEING PHOTOGRAPHED C) BOTH A & B D) NONE OF THESE 27) ARTHUR C.CLARKE, THE FAMOUS SCIENCE FICTION AUTHOR, WHILE WORKING AS A RADIO OPERATOR IN THE BRITISH ARMY IN WORLD WAR-II A) PROPOSED BULIDING A SPACE ELEVATOR FROM CARBON MONO-FILAMENTS B) POSTULATED THE EXISTENCE OF EXTRA-TERRESTRIAL ARTIFACTS ON THE MOON C) PROPOSED THAT A NETWORK OF SATELLITES IN STATIONARY ORBIT AT VERY HIGH ALTITUDES AROUNDS THE EARTH BE USED TO BOUNCE COMMUNICATION SIGNALS ALL OVER THE WORLD D) NONE OF THESE 28) THE SINO PAKISTANI JF-17 THUNDER AIRCRAFT: A) IS A COMMERCIAL TRANSPORT AIRCRAFT B) IS NEITHER BUILT NOR ASSEMBLED IN PAKISTAN C) HAS NO STEATH FEATURES IN ITS ENGINE INLETS OR ELSEWHERE D) NONE OF THESE 29) COMMUNICATION SATELLITES ARE IN A) GEOSTATIONARY ORBIT B) GEOSYNCHRONOUS ORBIT C) SEMISYNCHRONOUS ORBIT D) NONE OF THESE 30) RAM OF A COMPUTER IS REFERS TO : A) READ ACCESS MEMORY B) RIGHT ACCESS MEMORY C) RANDOM ACCESS MEMORY D) NONE OF THESE 31) WHICH OF THE FOLLOWING IS RESPONSIBLE FOR TRANSPORTING OXYGEN IN THE BLOOD A) WHITE BLOOD CELLS-------WBC B) NEUTROPHILLS C) RED BLOOD CELLS---------RBC D) NONE OF THESE 32) WHICH OF THE FOLLOWING IS TRUE FOR HORMONES? A) ALL PROTEINS ARE HORMONES B) ALL HORMONES ARE PROTEINS C) ALL HORMONES ARE AMINO ACIDS D) NONE OF THESE 33) PROKARYOTES HAVE WHICH OF THE FOLLOWING STRUCTURES? A) NUCLEUS B) MITOCHUNDRIA C) CHLOROPLAST D) NONE OF THESE 34) DIVERSITY IN WHICH OF THE FOLLOWING GROUPS IS NOT DUE TO ARTIFICIAL SLECTION? A) WHEAT B) DOGS C) -------------------------- D) NONE OF THESE 35) ARACHNOPHOBIA IS REFER TO A FEAR OF A) SPIDERS B) SNAKES C) BATS D) NONE OF THESE 36) WHICH OF THE FOLLOWING IS A PART OF DNA? A) dGTP B) dADP C) dTMP D) NONE OF THESE 37) IN HUMANS THE “Y” CHROMOSOME IS PASSED TO THE NEXT GENERATION FROM A) FATHER TO SON B) MOTHER TO SON C) FATHER TO DAUGHTER D) NONE OF THESE 38) WHICH OF THE FOLLOWING IS A MAMMAL? A) BLUE TUNA B) SWORD FISH C) WHALE D) NONE OF THESE 39) FEMALE OVA ARE: A) HAPLOID B) DIPLOID C) TRIPLOID D) NONE OF THESE 40) WHICH OF THE FOLLOWING IS NOT A PART OF DNA? A) THYMINE B) ADENINE C) RIBOSE D) NONE OF THESE 41) WHICH OF THE FOLLOWING IS A LABELED AS “GOOD CHOLESTEROL” FOR HUMANS? A) HIGH-DENSITY LIPOPROTEIN--------------HDL B) LOW DENSITY LIPOPROTEIN--------------- LDL C) VERY LOW DENSITY LIPOPROTEIN ------VLDL D) NONE OF THESE 42) WHICH OF THE FOLLOWING IS A INFECTIOUS DISEASE A) DEAFNESS B) BLINDNESS C) BALDNESS D) NONE OF THESE 43) WHICH OF THE FOLLOWING IS A NON ESSENTIAL AMINO ACID? A) ALMINE B) METHENAMINE C) TYROSINE D) NONE OF THESE 44) STARTING FROM HIGHER CHOOSE THE CORRECT SEQUENCE OF MOLECULES IN ORDER OF ENERGY YEILDING A) SUGAR,FATS,PROTEIN B) PROTEIN,SUGAR,FATS C) FATS,SUGAR,PROTEIN D) NONE OF THESE 45) WHICH OF THE FOLLOWING IS NOT A PART OF PROTEIN? A) GLUTAMIC ACID B) SULPHURIC ACID C) ASPARTIC ACID D) NONE OF THESE 46) THE HIGHEST SOURCE OF OMEGA-3 FATTY ACID IS A) FISH OIL B) CORN OIL C) SUNFLOWER OIL D) NONE OF THESE 47) WHICH OF THE FOLLOWING GAS IS ESSENTIAL FOR HUMAN A) CARBON DIOXIDE B) NITROGEN C) OXYGEN D) NONE OF THESE 48) PROTEINS ARE MADE UP OF A) POLYNUCLEOTIDE B) POLYPEPTIDE C) POLYACETYLENE D) NONE OF THESE 49. Schezophrenia is a Mental desease 50. Which of the following are founded in the nucleus? a) lysosomes b) |chromosomes c) ribosomes d) none of these |
[QUOTE=Asif Yousufzai;407902][U][B][SIZE="3"][CENTER]PART II[/CENTER][/SIZE][/B][/U]
[B]Q2:[/B] Write briefly about two or more major achievements of each of the following two famous Muslim scientists:- [B]a) [/B]Abu Abdullah Mohammad Bin Musa Al Khwarizmi [B] (05)[/B] [B]b)[/B] Abu Ali Al Hassan Ibn Al Hassan Al Haytham [B] (05)[/B] [B]Q3: [/B] [B]a) [/B]List four or more physical characteristics of the Earth. [B] (05)[/B] [B](b)[/B] Briefly explain how seasons and ocean tides are produced on the Earth? [B] (05)[/B] [B]Q4: [/B] [B](a)[/B] Very briefly explain the difference between Earthquakes, volcanic eruptions, floods and tsunamis. [B] (05)[/B] [B](b)[/B] Briefly explain the difference between Sedimentary and Metamorphic rocks. [B] (05)[/B] [B]Q5:[/B] [B](a) [/B]Very briefly explain the difference between an Insulator, a Conductor, a Semiconductor and a Superconductor. [B] (05)[/B] [B](b)[/B] Briefly explain the difference between a LASER and a Photovoltaic Cell. [B] (05)[/B] [B]Q6: [/B] [B](a) [/B]Briefly explain the difference between an Antibiotic, an Antiviral Drug, a Pesticide and a Vaccine. [B] (05)[/B] [B] (b)[/B] List any two of the three things that the MMR vaccine protects against. List any two other vaccines given to children. [B] (05)[/B] [B]Q7:[/B] [B] (a)[/B] Briefly explain how Photosynthesis works? [B] (05)[/B] [B] (b)[/B] Briefly explain the Nitrogen Cycle in nature. [B] (05)[/B] [B]Q8: (a)[/B] Differentiate between the following: [B] (05)[/B][LIST][*]DNA [*]mRNA (Messenger RNA)[*]Proteins[/LIST][B](b)[/B] Explain how DNA, m RNA and Proteins are interrelated to each other? [B] (05)[/B] [B]Q9 [/B] [B]a) [/B]Explain what is mean by a Balanced Diet? [B] (05)[/B] [B]b)[/B] Give the major function of the following micronutrients: Vitamin A, Vitamin C, Iron, Calcium and Iodine. [B] (05)[/B] [CENTER] ____________________________________________[/CENTER][/QUOTE] If any of you want to contribute in this pretigious thread ,then do share mcqz how much u have memorized please. I am going to solve this paper in pointed form.thanx. Balence diet: The diet contained all essential nutrient that needed not only for metabolic activity but for the functioning and co ordination in the body.These are divied into Macro and Micro nutrients. iodine. 1.thyroxine harmone production. 2.prevent from goiter. 2.calcium 1.prevent heart attacks ,used for cardiovascular system regulation. 2.necessary for Muscle action . Ca ions work with sodium ions in muscle movement. 3.IRÖN. Heme group compounded with iron in blood. So plays vital role in respiration phenomena. 2.Builds immune power in body. vitamin C Vitamin c is also found in citric fruits. All vitamins enhance other nutrient efficiency.work for nervous system . These help in growth. Often it is used in medicine form like sendose, herci and kind.it prevent from scurvy .it is a skin disease. Vitamin A . Lack cause 1. Night blindness 2. Sleeplessness 8. (b) DNA,RNA AND PROTIEN 1.sugar ribose 2. All work in cellular activities. 3.All are inherited. 4. All works in co ordination. Mean 1.DNA CODE 2.RNA encode 3.encoded info in ribosome form protein .that express parental qualities. 1.DNA HAS deoxy -ribose ,where as RNA has ribose sugar. Dun nt abw protien sugar .(kind) 3.DNA code genitic info RNA encode Protein is expression Baqe phr kabe .. |
personally i recommend u all Imtiaz Shahid's EDS book.that is indetail and depth and fulfills the need of a qualifier candidate.
ikram kashmiri's book is not up to the standard.i have consulted both,but thanks to Allah imtiaz shahid's EDS saved mine upto 35 correct mcqs. |
[QUOTE=MUHAMMAD LUQMAN GUJAR;408135]personally i recommend u all Imtiaz Shahid's EDS book.that is indetail and depth and fulfills the need of a qualifier candidate.
ikram kashmiri's book is not up to the standard.i have consulted both,but thanks to Allah imtiaz shahid's EDS saved mine upto 35 correct mcqs.[/QUOTE] Thanx for consultation.I do not need any book. I will ans mcq and ans these without any consultation from any of book. I have read both of these.so if you have any foreign author recommendation then most welcome. |
question number 7.
Photosynthesis is autonomic process. The autotroph possess plastids. Plastids have 3 kinds of compound. Chlorophyll itself a cell. It is a type of constructive metabolism which formed energy packet via sunlight. Respiration is a destructive type of metabolism. The aerobic type of respiration take place in mitochondria. It re-bond elements of food. So Release ATPz .these are required for working. Nitrogen cycle. The ratio of nitrogen is maintained constant in environment through cyclic activities ,this maintenance process is termed as nitrogen cycle. It revolve around nitrifying bacteria,photosynthesis,respiration and de nytrifyning bacteria. So after being consumed nitrogen go backs to atmosphere. |
chlorophyll is a pigment responsible for light absorption and is present in the chloroplast of the cell.
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[QUOTE=Hamidullah Gul;408583]chlorophyll is a pigment responsible for light absorption and is present in the chloroplast of the cell.[/QUOTE]
Study metabolism in detail. You'll know what are its functions. |
@ Sadia
Chlorophyll is a cell? Who told you this? |
[QUOTE=Last Island;408630]@ Sadia
Chlorophyll is a cell? Who told you this?[/QUOTE] Yes, it is. Before answering answer my one question. What is bacteria? |
Single celled micro organism
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[QUOTE=Last Island;408638]Single celled micro organism[/QUOTE]
Thanx for answering. First i thought to elongate it just for the sake of discussion. Now quit it. Cell are of two types one are called prokaryotes and other are eukaryotes. Bacteria has DNA NOT ENvoloped in cell. Virus is also a cell having DNA. And we says these are prokaryotes. Mitochondria and chlophyrl have that DNA and cellualar membrance plus plasma which define it as prokaryotes. At that time i am not online from PC SO cant link it. You can verify it via above mentioned classification. Regards! SADIA SHAFIQ. |
You are on your pc now so please search and show me the cell structure of chlorophyll. I really want to see its plasma, DNA and cellular membrane.
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up-till my bachelors in botany i didn't know that chlorophyll is a cell........:confused:
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[QUOTE=Last Island;408666]You are on your pc now so please search and show me the cell structure of chlorophyll. I really want to see its plasma, DNA and cellular membrane.[/QUOTE]
I am wrong in assertion? Ah! You do not believe what me saying. If i am and was on pc then certainly link it. 1.plastids have their own genome.what is genome ? Only that organelle signfy it as prokaryotes. You can compare it with cyno bacteria. And second see video link of cell structure of plants by channel khanacademy. This channel has received award internationally and appreciated on CNN. |
Please do not go off track. I am not talking about plastics, bacteria, prokaryote and eukaryote. We are discussing Chlorophyll as a Cell. I havent said that you are wrong in assertion. I, and many others, want to see the cell structure to enhance our knowledge and there is nothing bad about it. Is there?
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@ Sadia
Chlorophyll is substance present in chloroplast, one of the tiny organells of a plant cell. It captures light and helps plant prepare own food by the process of photosynthesis. It is not a cell by itself but a minute ingredient of a cell..... :) |
chloroplast is the unique cell organelle found in plant cell only, it is absent in animal cell, now chlorophyll is a pigment inside chloroplast that is used by the plants in the process of photosynthesis,
so, chlorophyll is a pigment in chloroplast of plant cell, it is not a ''cell''. |
[QUOTE=mano g;408822]chloroplast is the unique cell organelle found in plant cell only, it is absent in animal cell, now chlorophyll is a pigment inside chloroplast that is used by the plants in the process of photosynthesis, [COLOR="Navy"]It is only formed in the presence of sunlight.[/COLOR]
so, chlorophyll is a pigment in chloroplast of plant cell, it is not a ''cell''.[/QUOTE] Exactly. Sis, Sadia, I know where you're coming from. You're right in saying Mitochondria and chloroplast(a variant of plastids, otheres being chromoplast and leaucoplast etc) have their own genomes. But they still can't be called as cells. Why? Cell is defined as [I]'The structural and functional unit of life'[/I]. What that means is, a cell has all the basic structure and performs all the functions a living thing can perform. These functions include, Growth, digestion, reproduction, response to stimuli, homeostatisis etc etc. A chloroplast though may have DNA, it lacks other above mentioned properties. As to chloroplast, it's a different thing altogether. It's just a pigment, that is formed inside CHLOROPLASTS in the presence of sunlight, necessary for photosynthesis. |
EDS MCQs that i remember (please do point out the errors)
1. Electricity and Magnetism are a)Two aspects of same force....b) completely opposite....c)both a & b...d)none of the above [B]Answer: A[/B] 2.Richest source of omega 3 acids a) fish oil b) sunflower c)----- d) none of the above [B]Answer: A[/B] 3. which one of the following is a mammal whale (sorry, cant recall any other option) [B]Correct[/B] 4.which one of the following reaction happens on Sun a. nuclear fusion of hydrogen into helium b. nuclear fission of uranium and ____ c.nuclear fission of plutonium and ___ d.none of the above [B]Answer: A[/B] 5.one light year is equal to a. the time it takes the light to travel from the surface of the sun to the earth b. distance covered by light in one solar year d.none of the above [B]Answer:B[/B] 6. Atmospheric pressure at sea level a. 1 psi b. 14.7 c. 32 psi d.none of the above [B]Answer: B[/B] 7. weight on the moon a.same as that on the earth b. double the weight on earth c.one sixth of earth weight d.none of the above [B]Answer: C[/B] 8. ibn zuhr , writer of Al-Taisir was, pioneer of a. surgery b.calculus c. astronomy d.none of the above [B]Answer:A[/B] 9. in his book kitab al jabr wal muqabla, al khawarizmi a.solved linear and quadratic equation b.c.d [B]Answer:A[/B] 10. "Truth is *insert lambi si philosophical quotation* " which famous scholar of 11th century said that a. plato b. Al Haythem c.aristotle d.none of the above |
11. what is the correct sequence of inner planets of our solar system
a.jupiter, saturn, uranus, neptune b. wrong sequence c.mercury, venus, earth, mars d.none of the above 13. sun is a a. Blue giant b. white dwarf c.supernova d. none of the above 14. galileo was persecuted for saying sigh...a hodgepodge of sun stationary, earth revolves, center of universe etc 15. Newton and some other dude are considered father of a.calculus b.general relativity c. (hehe,,i bet you can tell i got loads of mcqs wrong..at least 15 :closedeye) 16. the energy and matter in a closed system a. conserved b.changed from one form to another c. both a and b d.none of the above 17. father transfers y chromosome to a. son b. daughter. c. pata nai aur kia ho sakta hai 18. an ovum is a. diploid b. haploid d none of the above 19. prokaryotic cell contains a. nucleaus b.ribosomes c.some other organelle 20.which one of these is infectious a. baldness b. deafness c. blindness d.none of the above |
[QUOTE=Wali Ahad;408863]11. what is the correct sequence of inner planets of our solar system
a.jupiter, saturn, uranus, neptune b. wrong sequence c.mercury, venus, earth, mars d.none of the above [B]Answer:C[/B] Mercury, Venus, Earth and Mars 13. sun is a a. Blue giant b. white dwarf c.supernova d. none of the above 14. galileo was persecuted for saying sigh...a hodgepodge of sun stationary, earth revolves, center of universe etc [B]For saying: "Sun is the center of the universe"[/B] 15. Newton and some other dude are considered father of a.calculus b.general relativity c. [B]Answer: Classical mechanics, I guess.[/B] (hehe,,i bet you can tell i got loads of mcqs wrong..at least 15 :closedeye) 16. the energy and matter in a closed system a. conserved b.changed from one form to another c. both a and b d.none of the above [B]Both, A and B.[/B] 17. father transfers y chromosome to a. son b. daughter. c. pata nai aur kia ho sakta hai [B]Answer: A[/B]..Son, son main XY hota hai, daughter k liay X transfer krta hai..female= XX. 18. an ovum is a. diploid b. haploid d none of the above [B]Answer: A[/B] 19. prokaryotic cell contains a. nucleaus b.ribosomes c.some other organelle [B]Membrane bound nucleus nahin hota..[/B] 20.which one of these is infectious a. baldness b. deafness c. blindness d.none of the above [B]Answer: D[/B], I guess. |
hehe..thanks candidguy..now no one would spare me a second look, and you would become an overnight sensation :cry
jk..:laughing good job though i think ovum is haploid, no? |
Yes. You're right. Ovum is a haploid. Sorry!
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Chlorophyll is the [B]molecule[/B] that traps this 'most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green. The basic structure of a chlorophyll [B]molecule[/B] is a [B]porphyrin ring, co-ordinated to a central atom[/B]. This is very similar in structure to the heme group found in hemoglobin, except that in heme the central atom is iron, whereas in chlorophyll it is magnesium.
There are actually 2 main types of chlorophyll, named a and b. They differ only slightly, in the composition of a sidechain (in a it is -CH3, in b it is CHO). Both of these two chlorophylls are very effective photoreceptors because they contain a network of alternating single and double bonds, and the orbitals can delocalise stabilising the structure. Such delocalised polyenes have very strong absorption bands in the visible regions of the spectrum, allowing the plant to absorb the energy from sunlight. The different sidegroups in the 2 chlorophylls 'tune' the absorption spectrum to slightly different wavelengths, so that light that is not significantly absorbed by chlorophyll a, at, say, 460nm, will instead be captured by chlorophyll b, which absorbs strongly at that wavelength. Thus these two kinds of chlorophyll complement each other in absorbing sunlight. Plants can obtain all their energy requirements from the blue and red parts of the spectrum, however, there is still a large spectral region, between 500-600nm, where very little light is absorbed. This light is in the green region of the spectrum, and since it is reflected, this is the reason plants appear green. Chlorophyll absorbs so strongly that it can mask other less intense colours. Some of these more delicate colours (from molecules such as carotene and quercetin) are revealed when the chlorophyll molecule decays in the Autumn, and the woodlands turn red, orange, and golden brown. Chlorophyll can also be damaged when vegetation is cooked, since the central Mg atom is replaced by hydrogen ions. This affects the energy levels within the molecule, causing its absorbance spectrum to alter. Thus cooked leaves change colour - often becoming a paler, insipid yellowy green. |
mirza niamat baig from kasur
especially for sadia who needs a book by a foreign publisher.
everyday science by pearson. recommended by mr. mirza niamat baig, a friend of mine. |
Eds mcqs 2012
Every day science css-2012 objective
EVERY DAY SCIENCE CSS-2012 OBJECTIVE MARKS 50 TIME 80 MINS 1) A SCIENTIFIC METHOD WILL SEEK TO EXPLAIN NATURAL EVENTS AND MAKE USEFUL PREDICTION IN A) A HAPHAZARD MANNER B) A MANNER DESIGN TO FIT THE THEORIST,S OR EXPERIMENTER,S BIAS C) A CONSISTENTLY REPRODUCIBLE MANNER D) NONE OF THESE 2) “TRUTH IS THE SOUGHT FOR ITS OWN SAKE. AND THOSE WHO ARE ENGAGED UPON THE QUEST FOR ANYTHING FOR ITS OWN SAKE ARE NOTINTERESTED IN OTHER THINGS. FINDING THE TRUTH IS DIFFICULT AND THE ROAD TO IT IS ROUGH.” THIS WAS STATED BY WHICH KEY FIGURE IN THE DEVELOPMENT OF SCIENTIFIC METHOD IN THE 11TH CENTURY? A) ARISTOTLE [B]B) IBN AL HAYTHAM[/B] C) PLATO ` D) NONE OF THESE 3) ABU ABDULLAH MUHAMMAD BIN MUSA AL-KHWARIZMI IS FAMOUS FOR WRITING THE “KITAB AL JABER WAL MUQABLA” IN WHICH HE [B]A) PRESENTED THE FIRST SYSTEMATIC SOLUTION OF LINEAR AND QUADRATIC EQUATIONS[/B] B) DELINEATED METHODS OF OPPRESSION & COMPETITION C) C) WROTE THE LAWS OF OPTICS D) NONE OF THESE 4) GALLIEO GALLIES WAS PERESCUTED BY THE CATHOLIC CHURCH FOR SUSPICON OF HOLDING THE VIEW THAT: A) OBJECTS OF DIFFERENT MASSES FELL AT THE SAME VELOCITY B) THE SUN REVOLVES AROUNDS THE MOON C) THE EARTH WAS PROBABLY NOT THE CENTRE OF THE UNIVERSE [B]D) NONE OF THESE[/B] 5) THE PROLIFERATION OF EDUCATION AND DISSEMINATION OF KNOWLEDGE IN THE LAST TWO CENTURIES HAS LED TO A FAITH IN SCIENCE THAT: A) CAUSES HUMAN BEINGS TO TURN ON OTHER HUMAN BEINGS [B]B) IS THE MAIN CAUSE OF POVERTY AND WAR[/B] C) LEADS TO OPPRESSION OF EDUCATION D) NONE OF THESE 6) SCIENCE ATTEMPTS TO: A) EXPLAINS HOW THE UNIVERSE WORKS BY DICOVERING THE LAWS REGULATING EVERYTHING AROUND US B) USE DICOVERED LAWS TO ENGINEER NEW DEVICES [B]C) BOTH A & B[/B] D) NONE OF THESE 7) IBN ZUHR, THE AUTHOR OF AL TAISIR, IS KNOWN AS: [B]A) THE FATHER OF EXPERIMENTAL SURGERY[/B] B) THE FOUNDER OF CALCULUS C) A BIOGRAPHER OF PROVINCIAL GOVERNORS D) NONE OF THESE 8) IBN KHALDUN’S MUQQADIMAH IS REGARDED BY MANY AS: [B]A) THE FIRST WORK DEALING WITH A PHILOSOPHY OF HISTORY[/B] B) A MINOR FOOTNOTE IN HIS WRITINGS C) A WELL DOCUMENTED TALE OF HIS TRIAL D) NONE OF THESE 9) A PHYSICAL, MATHEMATICAL OR LOGICAL REPRESENTATION OF A NATURAL PHENOMENON IS CALLED A) PHENOMENAL [B]B) A SCIENTIFIC MODEL[/B] C) A THEORATICAL POSTULATE D) NONE OF THESE 10) ISSAC NEWTON AND GOTTFRIED LEIBNIZ WORKING INDEPENDENTLY IN THE 17TH CENURY LAID THE FOUNDATION OF CLASSICAL PHYSICS AND ARE KNOWN AS FATHERS OF A) ASTROLOGY B) RELATIVISTIC THEORY C) INTEGRAL & DIFFERENTIAL CALCULUS [B]D) NONE OF THESE[/B] 11) A LIGHT YEAR IS A) A YEAR DEVOID OF HEAVY RAINFALL B) THE TIME TAKEN BY LIGHT TO BE GENERATED & PROPAGATED FROM THE CENTRE OF THE SUN TO OUR EARTH [B]C) THE DISTANCE COVERED BY LIGHT IN ONE OF OUR SOLAR YEARS[/B] D) NONE OF THESE 12) OUR SUN IS CLASSIFIED AS A) A BLUE GIANT B) A YELLOW DWARF C) SUPERNOVA [B]D) NONE OF THESE[/B] 13) THE SUN PRODUCES MOST OF ITS ENERGY BY: [B]A) NUCLEAR FUSION WHICH INVOLVES CONVERTING “H” TO “He”[/B] B) NUCLEAR FISSION INVOLVING THE BURNING OF URANIUM & PLUTONIUM C) NUCLEAR FISSION INVOLVING THE COMBINING OF URANIUM AND PALLADIUM D) NONE OF THESE 14) WHICH OF THE FOLLOWING IS THE CORRECT ORDERING OF THE INNER PLANETS ACCORDING TO THEIR ROXIMITY TO THE SUN A) JUPITER,SATURN,URANUS,NEPTUNE B) PHOBOS,DEIMES,EUROPE,TIAS [B]C) MERCURY,VENUS,EARTH,MARS[/B] D) NONE OF THESE 15) HOW LONG DOES OUR EARTH TAKES TO TURN ABOUT ITS AXIS A) ONE HOUR B) 23 HOURS [B]C) 24 HOURS[/B] D) NONE OF THESE 16) TIDES ARE GENERATED BY[B] A) THE MOVEMENTS OF SHIPS IN THE OCEANS[/B] B) THE GRAVITATIONAL EFFECT OF MOON ANA SUN ON OUR EARTH C) THE MOVEMENTS OF THE EARTH AROUND THE SUN D) NONE OF THESE 17) SEASONS ARE GENERATED BY A) THE MOVEMENT OF SUN AROUND COABES OF THE MILKY WAY [B]B) THE MOVEMENT OF THE EARTH AROUND THE SUN[/B] C) RELATIVISTIC QUANTIUM ------------------------- D) NONE OF THESE 18) ALTHOUGH THE MASS OF A MAN ON MOON REMAINS SAME AS ON THE EARTH,HE WILL A) BE MUCH HAPPIER THERE B) WEIGH ONE SIXTH AS MUCH C) WEIGH TWICE AS MUCH [B]D) NONE OF THESE[/B] 19) IF WE ARE AT SEE LEVEL OUR ATMOSPHERE PRESSES DOWN ON US WITH A PRESSURE OF: A) 1 FPS B) 14.3 FPS C) 35.8 FPS [B]D) NONE OF THESE[/B] 20) THE EFFICIENCY OF A MACHINE IS A) ALWAYS GREATER TANH 100% [B]B) ALWAYS LESS THAN 100%[/B] C) ALWAYS 100% D) NONE OF THESE 21) A MATERIAL WITH HIGH ELASTICITY [B]A) DOES NOT RETURNS TO ITS ORIGIONAL SHAPE UPON BEING STRETCHED AND THEN RELEASED[/B] B) RETURNS AS CLOSE AS POSSIBLE TO ITS ORIGIONAL SHAPE UPON BEING STRETCHED AND THEN RELEASED C) CAN BE STRETCHEDTO INFINITE DISTANCES D) NONE OF THESE 22) MATTER AND ENERGY A) CAN BE CONVERTED FROM ONE TO THE OTHER B) WHEN TAKEN TOGETHER , CONVERTED IN ALL PROCESSESS IN A CLOSED SYSTEM [B]C) BOTH A & B[/B] D) NONE OF THESE 23) ELECTRIC CURRENT A) FLOWS FROM A HIGHER POTENTIAL TO LOWER POTENTIAL B) IS CAUSED BY FLOW OF ELECTRONS [B]C) BOTH A & B[/B] D) NONE OF THESE 24) ELECTRICITY AND MAGNETISM ARE A) TWO FACETS OF SAME FORCE B) ALWAYS OPPOSED TO EACH OTHER [B]C) BOTH A & B[/B] D) NONE OF THESE 25) BALL BEARING HELP WHEELS AND OTHER ROTATING OBJECTS A) MOVE WITHOUT CONSUMING ANY ENERGY B) ROTATE MORE EASILY AND WITH LESS FRICTION [B]C) BOTH A & B[/B] D) NONE OF THESE 26) PHOTOGRAPHY WORKS BY A) CAPTURING THE SOULS OF THE OBJECTS BEING PHOTOGRAPHED B) CAPTURING LIGHT REFLECTED FROM THE OBJECT BEING PHOTOGRAPHED [B]C) BOTH A & B[/B] D) NONE OF THESE 27) ARTHUR C.CLARKE, THE FAMOUS SCIENCE FICTION AUTHOR, WHILE WORKING AS A RADIO OPERATOR IN THE BRITISH ARMY IN WORLD WAR-II A) PROPOSED BULIDING A SPACE ELEVATOR FROM CARBON MONO-FILAMENTS B) POSTULATED THE EXISTENCE OF EXTRA-TERRESTRIAL ARTIFACTS ON THE MOON [B]C) PROPOSED THAT A NETWORK OF SATELLITES IN STATIONARY ORBIT AT VERY HIGH ALTITUDES AROUNDS THE EARTH BE USED TO BOUNCE COMMUNICATION SIGNALS ALL OVER THE WORLD[/B] D) NONE OF THESE 28) THE SINO PAKISTANI JF-17 THUNDER AIRCRAFT: A) IS A COMMERCIAL TRANSPORT AIRCRAFT B) IS NEITHER BUILT NOR ASSEMBLED IN PAKISTAN C) HAS NO STEATH FEATURES IN ITS ENGINE INLETS OR ELSEWHERE [B]D) NONE OF THESE[/B] 29) COMMUNICATION SATELLITES ARE IN [B]A) GEOSTATIONARY ORBIT[/B] B) GEOSYNCHRONOUS ORBIT C) SEMISYNCHRONOUS ORBIT D) NONE OF THESE 30) RAM OF A COMPUTER IS REFERS TO : A) READ ACCESS MEMORY B) RIGHT ACCESS MEMORY [B]C) RANDOM ACCESS MEMORY[/B] D) NONE OF THESE 31) WHICH OF THE FOLLOWING IS RESPONSIBLE FOR TRANSPORTING OXYGEN IN THE BLOOD A) WHITE BLOOD CELLS-------WBC B) NEUTROPHILLS [B]C) RED BLOOD CELLS---------RBC[/B] D) NONE OF THESE 32) WHICH OF THE FOLLOWING IS TRUE FOR HORMONES? A) ALL PROTEINS ARE HORMONES B) ALL HORMONES ARE PROTEINS [B]C) ALL HORMONES ARE AMINO ACIDS[/B] D) NONE OF THESE 33) PROKARYOTES HAVE WHICH OF THE FOLLOWING STRUCTURES? [B]A) NUCLEUS[/B] B) MITOCHUNDRIA C) CHLOROPLAST D) NONE OF THESE 34) DIVERSITY IN WHICH OF THE FOLLOWING GROUPS IS NOT DUE TO ARTIFICIAL SLECTION? A) WHEAT B) DOGS C) -------------------------- D) NONE OF THESE 35) ARACHNOPHOBIA IS REFER TO A FEAR OF A) SPIDERS B) SNAKES [B]C) BATS[/B] D) NONE OF THESE 36) WHICH OF THE FOLLOWING IS A PART OF DNA? [B]A) dGTP[/B] B) dADP C) dTMP D) NONE OF THESE 37) IN HUMANS THE “Y” CHROMOSOME IS PASSED TO THE NEXT GENERATION FROM [B]A) FATHER TO SON[/B] B) MOTHER TO SON C) FATHER TO DAUGHTER D) NONE OF THESE 38) WHICH OF THE FOLLOWING IS A MAMMAL? A) BLUE TUNA B) SWORD FISH [B]C) WHALE[/B] D) NONE OF THESE 39) FEMALE OVA ARE: A) HAPLOID [B]B) DIPLOID[/B] C) TRIPLOID D) NONE OF THESE 40) WHICH OF THE FOLLOWING IS NOT A PART OF DNA? A) THYMINE B) ADENINE [B]C) RIBOSE[/B] D) NONE OF THESE 41) WHICH OF THE FOLLOWING IS A LABELED AS “GOOD CHOLESTEROL” FOR HUMANS? A) HIGH-DENSITY LIPOPROTEIN--------------HDL [B]B) LOW DENSITY LIPOPROTEIN--------------- LDL[/B] C) VERY LOW DENSITY LIPOPROTEIN ------VLDL D) NONE OF THESE 42) WHICH OF THE FOLLOWING IS A INFECTIOUS DISEASE A) DEAFNESS B) BLINDNESS [B]C) BALDNESS[/B] D) NONE OF THESE 43) WHICH OF THE FOLLOWING IS A NON ESSENTIAL AMINO ACID? A) ALMINE [B]B) METHENAMINE[/B] C) TYROSINE D) NONE OF THESE 44) STARTING FROM HIGHER CHOOSE THE CORRECT SEQUENCE OF MOLECULES IN ORDER OF ENERGY YEILDING A) SUGAR,FATS,PROTEIN [B]B) PROTEIN,SUGAR,FATS[/B] C) FATS,SUGAR,PROTEIN D) NONE OF THESE 45) WHICH OF THE FOLLOWING IS NOT A PART OF PROTEIN? A) GLUTAMIC ACID [B]B) SULPHURIC ACID[/B] C) ASPARTIC ACID D) NONE OF THESE 46) THE HIGHEST SOURCE OF OMEGA-3 FATTY ACID IS [B]A) FISH OIL[/B] B) CORN OIL C) SUNFLOWER OIL D) NONE OF THESE 47) WHICH OF THE FOLLOWING GAS IS ESSENTIAL FOR HUMAN A) CARBON DIOXIDE B) NITROGEN [B]C) OXYGEN[/B] D) NONE OF THESE 48) PROTEINS ARE MADE UP OF A) POLYNUCLEOTIDE B) POLYPEPTIDE C) POLYACETYLENE D) NONE OF THESE 49) -------------------------------------------------------DONOT REMEMBER 50) ------------------------------------------------------- DONOT REMEMBER |
Corrections in EDS answers
[QUOTE=Raja Bahar;418103]Every day science css-2012 objective
EVERY DAY SCIENCE CSS-2012 OBJECTIVE MARKS 50 TIME 80 MINS 1) A SCIENTIFIC METHOD WILL SEEK TO EXPLAIN NATURAL EVENTS AND MAKE USEFUL PREDICTION IN A) A HAPHAZARD MANNER B) A MANNER DESIGN TO FIT THE THEORIST,S OR EXPERIMENTER,S BIAS [B]C) A CONSISTENTLY REPRODUCIBLE MANNER [/B]D) NONE OF THESE 4) GALLIEO GALLIES WAS PERESCUTED BY THE CATHOLIC CHURCH FOR SUSPICON OF HOLDING THE VIEW THAT: A) OBJECTS OF DIFFERENT MASSES FELL AT THE SAME VELOCITY B) THE SUN REVOLVES AROUNDS THE MOON [B]C) THE EARTH WAS PROBABLY NOT THE CENTRE OF THE UNIVERSE [/B]D) NONE OF THESE 10) ISSAC NEWTON AND GOTTFRIED LEIBNIZ WORKING INDEPENDENTLY IN THE 17TH CENURY LAID THE FOUNDATION OF CLASSICAL PHYSICS AND ARE KNOWN AS FATHERS OF A) ASTROLOGY B) RELATIVISTIC THEORY [B]C) INTEGRAL & DIFFERENTIAL CALCULUS [B]D) NONE OF THESE 16) TIDES ARE GENERATED BY A) THE MOVEMENTS OF SHIPS IN THE OCEANS [B]B) THE GRAVITATIONAL EFFECT OF MOON ANA SUN ON OUR EARTH [/B] C) THE MOVEMENTS OF THE EARTH AROUND THE SUN D) NONE OF THESE 18) ALTHOUGH THE MASS OF A MAN ON MOON REMAINS SAME AS ON THE EARTH,HE WILL A) BE MUCH HAPPIER THERE [B]B) WEIGH ONE SIXTH AS MUCH [/B]C) WEIGH TWICE AS MUCH D) NONE OF THESE 21) A MATERIAL WITH HIGH ELASTICITY A) DOES NOT RETURNS TO ITS ORIGIONAL SHAPE UPON BEING STRETCHED AND THEN RELEASED [B]B) RETURNS AS CLOSE AS POSSIBLE TO ITS ORIGIONAL SHAPE UPON BEING STRETCHED AND THEN RELEASED [/B]C) CAN BE STRETCHEDTO INFINITE DISTANCES D) NONE OF THESE 26) PHOTOGRAPHY WORKS BY A) CAPTURING THE SOULS OF THE OBJECTS BEING PHOTOGRAPHED [B]B) CAPTURING LIGHT REFLECTED FROM THE OBJECT BEING PHOTOGRAPHED [/B] C) BOTH A & B D) NONE OF THESE 35) ARACHNOPHOBIA IS REFER TO A FEAR OF [B]A) SPIDERS [/B]B) SNAKES C) BATS D) NONE OF THESE 41) WHICH OF THE FOLLOWING IS A LABELED AS “GOOD CHOLESTEROL” FOR HUMANS? [B]A) HIGH-DENSITY LIPOPROTEIN--------------HDL [/B] B) LOW DENSITY LIPOPROTEIN--------------- LDL C) VERY LOW DENSITY LIPOPROTEIN ------VLDL D) NONE OF THESE HDL (Good) Cholesterol About one-fourth to one-third of blood cholesterol is carried by high-density lipoprotein (HDL). HDL cholesterol is known as "good" cholesterol, because high levels of HDL seem to protect against heart attack. 43) WHICH OF THE FOLLOWING IS A NON ESSENTIAL AMINO ACID? [B]A) ALANINE[/B] B) METHENAMINE] C) TYROSINE D) NONE OF THESE 44) STARTING FROM HIGHER CHOOSE THE CORRECT SEQUENCE OF MOLECULES IN ORDER OF ENERGY YEILDING A) SUGAR,FATS,PROTEIN B) PROTEIN,SUGAR,FATS [B]C) FATS,SUGAR,PROTEIN [/B]D) NONE OF THESE 48) PROTEINS ARE MADE UP OF A) POLYNUCLEOTIDE [B]B) POLYPEPTIDE[/B] C) POLYACETYLENE D) NONE OF THESE |
EDS MCQs
[QUOTE=alimallah;418312][QUOTE=Raja Bahar;418103]Every day science css-2012 objective
43) WHICH OF THE FOLLOWING IS A NON ESSENTIAL AMINO ACID? [B]A) ALANINE[/B] B) METHENAMINE] C) TYROSINE D) NONE OF THESE [/QUOTE] Dear correct answer is [B]Tyrosine[/B] [url]http://en.wikipedia.org/wiki/Essential_amino_acid[/url] |
[QUOTE=Arslan Shaukat;418505][QUOTE=alimallah;418312]
Dear correct answer is [B]Tyrosine[/B] [url]http://en.wikipedia.org/wiki/Essential_amino_acid[/url][/QUOTE] Brother tyrosine is sometimes essential you can see from the table you have quoted. Alanine tops the list of non-essential amino acids. |
dear frinds
i am not an aspirant of css as i am searching this forum for the nab jobs being over aged 32 years of age. I cam across an objective MATER AND ENERGY can be converted into each other there were four options so i just decided to share my knowledge it may be right or wrong. but it is my idea the relationship of energy and matter is given by the eienstine equation E=MC SQUARE this states that the matter and energy are changeable from one state to another but he also stated that the matter can be changed into energy but energy cannot be changed back into the matter. its my point of view pardon me if i am wrong and the answer of that objective is NONE OF THESES |
Energy and matter
[QUOTE=aloneaz;423606]dear frinds
i am not an aspirant of css as i am searching this forum for the nab jobs being over aged 32 years of age. I cam across an objective MATER AND ENERGY can be converted into each other there were four options so i just decided to share my knowledge it may be right or wrong. but it is my idea the relationship of energy and matter is given by the eienstine equation E=MC SQUARE this states that the matter and energy are changeable from one state to another but he also stated that the matter can be changed into energy but energy cannot be changed back into the matter. its my point of view pardon me if i am wrong[/QUOTE] Dear! I regret, but it is my painful duty to inform you that your postulate is wrong. Energy and matter are interchangeable. When nucleus is broke up into its particles (by adding/bombarding it with high energy rays called as Energy Defect) then total mass of seperated particles taken alone is more than the parent nucleus. The energy of the rays is added up as mass to the divided particles increaing its mass. Conversely, when sub-nuclear particles are added up to again form the nucleus then some amount of energy is released and the resultant nucleus is less in mass than the total sum of mass of individual particles that made up that nucleus. Hope this explanation would help you get my point. Regards, |
Everyday Science
1) A SCIENTIFIC METHOD WILL SEEK TO EXPLAIN NATURAL EVENTS AND MAKE USEFUL PREDICTION IN
A) A HAPHAZARD MANNER B) A MANNER DESIGN TO FIT THE THEORIST,S OR EXPERIMENTER,S BIAS [B]C) A CONSISTENTLY REPRODUCIBLE MANNER[/B]D) NONE OF THESE 2) “TRUTH IS THE SOUGHT FOR ITS OWN SAKE. AND THOSE WHO ARE ENGAGED UPON THE QUEST FOR ANYTHING FOR ITS OWN SAKE ARE NOTINTERESTED IN OTHER THINGS. FINDING THE TRUTH IS DIFFICULT AND THE ROAD TO IT IS ROUGH.” THIS WAS STATED BY WHICH KEY FIGURE IN THE DEVELOPMENT OF SCIENTIFIC METHOD IN THE 11TH CENTURY? A) ARISTOTLE [B]B) IBN AL HAYTHAM[/B] C) PLATO ` D) NONE OF THESE 3) ABU ABDULLAH MUHAMMAD BIN MUSA AL-KHWARIZMI IS FAMOUS FOR WRITING THE “KITAB AL JABER WAL MUQABLA” IN WHICH HE [B]A) PRESENTED THE FIRST SYSTEMATIC SOLUTION OF LINEAR AND QUADRATIC EQUATIONS[/B] B) DELINEATED METHODS OF OPPRESSION & COMPETITION C) C) WROTE THE LAWS OF OPTICS D) NONE OF THESE 4) GALLIEO GALLIES WAS PERESCUTED BY THE CATHOLIC CHURCH FOR SUSPICON OF HOLDING THE VIEW THAT: A) OBJECTS OF DIFFERENT MASSES FELL AT THE SAME VELOCITY B) THE SUN REVOLVES AROUNDS THE MOON [B]C) THE EARTH WAS PROBABLY NOT THE CENTRE OF THE UNIVERSE[/B] D) NONE OF THESE 5) THE PROLIFERATION OF EDUCATION AND DISSEMINATION OF KNOWLEDGE IN THE LAST TWO CENTURIES HAS LED TO A FAITH IN SCIENCE THAT: [B]A) CAUSES HUMAN BEINGS TO TURN ON OTHER HUMAN BEINGS[/B] B) IS THE MAIN CAUSE OF POVERTY AND WAR C) LEADS TO OPPRESSION OF EDUCATION D) NONE OF THESE 6) SCIENCE ATTEMPTS TO: A) EXPLAINS HOW THE UNIVERSE WORKS BY DICOVERING THE LAWS REGULATING EVERYTHING AROUND US B) USE DICOVERED LAWS TO ENGINEER NEW DEVICES [B]C) BOTH A & B [/B] D) NONE OF THESE 7) IBN ZUHR, THE AUTHOR OF AL TAISIR, IS KNOWN AS: [B]A) THE FATHER OF EXPERIMENTAL SURGERY[/B] B) THE FOUNDER OF CALCULUS C) A BIOGRAPHER OF PROVINCIAL GOVERNORS D) NONE OF THESE 8) IBN KHALDUN’S MUQQADIMAH IS REGARDED BY MANY AS: [B]A) THE FIRST WORK DEALING WITH A PHILOSOPHY OF HISTORY[/B] B) A MINOR FOOTNOTE IN HIS WRITINGS C) A WELL DOCUMENTED TALE OF HIS TRIAL D) NONE OF THESE 9) A PHYSICAL, MATHEMATICAL OR LOGICAL REPRESENTATION OF A NATURAL PHENOMENON IS CALLED A) PHENOMENAL [B]B) A SCIENTIFIC MODEL[/B] C) A THEORATICAL POSTULATE D) NONE OF THESE 10) ISSAC NEWTON AND GOTTFRIED LEIBNIZ WORKING INDEPENDENTLY IN THE 17TH CENURY LAID THE FOUNDATION OF CLASSICAL PHYSICS AND ARE KNOWN AS FATHERS OF A) ASTROLOGY B) RELATIVISTIC THEORY [B]C) INTEGRAL & DIFFERENTIAL CALCULUS [/B] D) NONE OF THESE 11) A LIGHT YEAR IS A) A YEAR DEVOID OF HEAVY RAINFALL B) THE TIME TAKEN BY LIGHT TO BE GENERATED & PROPAGATED FROM THE CENTRE OF THE SUN TO OUR EARTH [B]C) THE DISTANCE COVERED BY LIGHT IN ONE OF OUR SOLAR YEARS[/B] D) NONE OF THESE 12) OUR SUN IS CLASSIFIED AS A) A BLUE GIANT [B]B) A YELLOW DWARF[/B] C) SUPERNOVA D) NONE OF THESE 13) THE SUN PRODUCES MOST OF ITS ENERGY BY: [B]A) NUCLEAR FUSION WHICH INVOLVES CONVERTING “H” TO “He”[/B]B) NUCLEAR FISSION INVOLVING THE BURNING OF URANIUM & PLUTONIUM C) NUCLEAR FISSION INVOLVING THE COMBINING OF URANIUM AND PALLADIUM D) NONE OF THESE 14) WHICH OF THE FOLLOWING IS THE CORRECT ORDERING OF THE INNER PLANETS ACCORDING TO THEIR ROXIMITY TO THE SUN A) JUPITER,SATURN,URANUS,NEPTUNE B) PHOBOS,DEIMES,EUROPE,TIAS [B]C) MERCURY,VENUS,EARTH,MARS[/B] D) NONE OF THESE 15) HOW LONG DOES OUR EARTH TAKES TO TURN ABOUT ITS AXIS A) ONE HOUR B) 23 HOURS [B]C) 24 HOURS[/B] D) NONE OF THESE 16) TIDES ARE GENERATED BY A) THE MOVEMENTS OF SHIPS IN THE OCEANS [B]B) THE GRAVITATIONAL EFFECT OF MOON ANA SUN ON OUR EARTH[/B] C) THE MOVEMENTS OF THE EARTH AROUND THE SUN D) NONE OF THESE 17) SEASONS ARE GENERATED BY A) THE MOVEMENT OF SUN AROUND COABES OF THE MILKY WAY [B]B) THE MOVEMENT OF THE EARTH AROUND THE SUN[/B] C) RELATIVISTIC QUANTIUM ------------------------- D) NONE OF THESE 18) ALTHOUGH THE MASS OF A MAN ON MOON REMAINS SAME AS ON THE EARTH,HE WILL A) BE MUCH HAPPIER THERE [B]B) WEIGH ONE SIXTH AS MUCH[/B] C) WEIGH TWICE AS MUCH D) NONE OF THESE 19) IF WE ARE AT SEE LEVEL OUR ATMOSPHERE PRESSES DOWN ON US WITH A PRESSURE OF: A) 1 PSI [B]B) 14.7 PSI[/B] C) 35.8 PSI D) NONE OF THESE 20) THE EFFICIENCY OF A MACHINE IS A) ALWAYS GREATER TANH 100% [B]B) ALWAYS LESS THAN 100%[/B] C) ALWAYS 100% D) NONE OF THESE 21) A MATERIAL WITH HIGH ELASTICITY A) DOES NOT RETURNS TO ITS ORIGIONAL SHAPE UPON BEING STRETCHED AND THEN RELEASED [B]B) RETURNS AS CLOSE AS POSSIBLE TO ITS ORIGIONAL SHAPE UPON BEING STRETCHED AND THEN RELEASED[/B] C) CAN BE STRETCHEDTO INFINITE DISTANCES D) NONE OF THESE 22) MATTER AND ENERGY A) CAN BE CONVERTED FROM ONE TO THE OTHER B) WHEN TAKEN TOGETHER , CONVERTED IN ALL PROCESSESS IN A CLOSED SYSTEM [B]C) BOTH A & B[/B] D) NONE OF THESE 23) ELECTRIC CURRENT A) FLOWS FROM A HIGHER POTENTIAL TO LOWER POTENTIAL B) IS CAUSED BY FLOW OF ELECTRONS [B]C) BOTH A & B[/B] D) NONE OF THESE 24) ELECTRICITY AND MAGNETISM ARE A) TWO FACETS OF SAME FORCE B) ALWAYS OPPOSED TO EACH OTHER [B]C) BOTH A & B[/B] D) NONE OF THESE 25) BALL BEARING HELP WHEELS AND OTHER ROTATING OBJECTS A) MOVE WITHOUT CONSUMING ANY ENERGY [B]B) ROTATE MORE EASILY AND WITH LESS FRICTION[/B] C) BOTH A & B D) NONE OF THESE 26) PHOTOGRAPHY WORKS BY A) CAPTURING THE SOULS OF THE OBJECTS BEING PHOTOGRAPHED [B]B) CAPTURING LIGHT REFLECTED FROM THE OBJECT BEING PHOTOGRAPHED[/B] C) BOTH A & B D) NONE OF THESE 27) ARTHUR C.CLARKE, THE FAMOUS SCIENCE FICTION AUTHOR, WHILE WORKING AS A RADIO OPERATOR IN THE BRITISH ARMY IN WORLD WAR-II A) PROPOSED BULIDING A SPACE ELEVATOR FROM CARBON MONO-FILAMENTS B) POSTULATED THE EXISTENCE OF EXTRA-TERRESTRIAL ARTIFACTS ON THE MOON [B]C) PROPOSED THAT A NETWORK OF SATELLITES IN STATIONARY ORBIT AT VERY HIGH ALTITUDES AROUNDS THE EARTH BE USED TO BOUNCE COMMUNICATION SIGNALS ALL OVER THE WORLD[/B] D) NONE OF THESE 28) THE SINO PAKISTANI JF-17 THUNDER AIRCRAFT: A) IS A COMMERCIAL TRANSPORT AIRCRAFT B) IS NEITHER BUILT NOR ASSEMBLED IN PAKISTAN [B]C) HAS NO STEATH FEATURES IN ITS ENGINE INLETS OR ELSEWHERE[/B] D) NONE OF THESE 29) COMMUNICATION SATELLITES ARE IN [B]A) GEOSTATIONARY ORBIT[/B] B) GEOSYNCHRONOUS ORBIT C) SEMISYNCHRONOUS ORBIT D) NONE OF THESE 30) RAM OF A COMPUTER IS REFERS TO : A) READ ACCESS MEMORY B) RIGHT ACCESS MEMORY [B]C) RANDOM ACCESS MEMORY[/B] D) NONE OF THESE 31) WHICH OF THE FOLLOWING IS RESPONSIBLE FOR TRANSPORTING OXYGEN IN THE BLOOD A) WHITE BLOOD CELLS-------WBC B) NEUTROPHILLS [B]C) RED BLOOD CELLS---------RBC[/B] D) NONE OF THESE 32) WHICH OF THE FOLLOWING IS TRUE FOR HORMONES? A) ALL PROTEINS ARE HORMONES [B]B) ALL HORMONES ARE PROTEINS[/B] C) ALL HORMONES ARE AMINO ACIDS D) NONE OF THESE 33) PROKARYOTES HAVE WHICH OF THE FOLLOWING STRUCTURES? A) NUCLEUS [B]B) MITOCHUNDRIA[/B] C) CHLOROPLAST D) NONE OF THESE 34) DIVERSITY IN WHICH OF THE FOLLOWING GROUPS IS NOT DUE TO ARTIFICIAL SLECTION? A) WHEAT B) DOGS [B]C) --------------------------[/B] D) NONE OF THESE 35) ARACHNOPHOBIA IS REFER TO A FEAR OF [B]A) SPIDERS[/B] B) SNAKES C) BATS D) NONE OF THESE 36) WHICH OF THE FOLLOWING IS A PART OF DNA? [B]A) dGTP[/B] B) dADP C) dTMP D) NONE OF THESE 37) IN HUMANS THE “Y” CHROMOSOME IS PASSED TO THE NEXT GENERATION FROM [B]A) FATHER TO SON[/B] B) MOTHER TO SON C) FATHER TO DAUGHTER D) NONE OF THESE 38) WHICH OF THE FOLLOWING IS A MAMMAL? A) BLUE TUNA B) SWORD FISH [B]C) WHALE[/B] D) NONE OF THESE 39) FEMALE OVA ARE: [B]A) HAPLOID[/B] B) DIPLOID C) TRIPLOID D) NONE OF THESE 40) WHICH OF THE FOLLOWING IS NOT A PART OF DNA? A) THYMINE B) ADENINE [B]C) RIBOSE[/B] D) NONE OF THESE 41) WHICH OF THE FOLLOWING IS A LABELED AS “GOOD CHOLESTEROL” FOR HUMANS? [B]A) HIGH-DENSITY LIPOPROTEIN--------------HDL[/B] B) LOW DENSITY LIPOPROTEIN--------------- LDL C) VERY LOW DENSITY LIPOPROTEIN ------VLDL D) NONE OF THESE [url]http://www.health.harvard.edu/newsweek/Understanding_Cholesterol.htm[/url] 42) WHICH OF THE FOLLOWING IS A INFECTIOUS DISEASE A) DEAFNESS B) BLINDNESS [B]C) BALDNESS[/B] D) NONE OF THESE 43) WHICH OF THE FOLLOWING IS A NON ESSENTIAL AMINO ACID? A) ALMINE B) METHENAMINE [B]C) TYROSINE[/B] D) NONE OF THESE [url]http://en.wikipedia.org/wiki/Essential_amino_acid[/url] 44) STARTING FROM HIGHER CHOOSE THE CORRECT SEQUENCE OF MOLECULES IN ORDER OF ENERGY YEILDING A) SUGAR,FATS,PROTEIN B) PROTEIN,SUGAR,FATS [B]C) FATS,SUGAR,PROTEIN[/B] D) NONE OF THESE 45) WHICH OF THE FOLLOWING IS NOT A PART OF PROTEIN? A) GLUTAMIC ACID [B]B) SULPHURIC ACID[/B] C) ASPARTIC ACID D) NONE OF THESE 46) THE HIGHEST SOURCE OF OMEGA-3 FATTY ACID IS [B]A) FISH OIL[/B] B) CORN OIL C) SUNFLOWER OIL D) NONE OF THESE 47) WHICH OF THE FOLLOWING GAS IS ESSENTIAL FOR HUMAN A) CARBON DIOXIDE B) NITROGEN [B]C) OXYGEN[/B] D) NONE OF THESE 48) PROTEINS ARE MADE UP OF A) POLYNUCLEOTIDE [B]B) POLYPEPTIDE[/B] C) POLYACETYLENE D) NONE OF THESE 49) SCHEZOPHRENIA is a [B]mental disease[/B] 50. which of the following are founded in the nucleus? a) lysosomes [B]b) chromosomes[/B] c) ribosomes d) none of these |
[QUOTE]5) THE PROLIFERATION OF EDUCATION AND DISSEMINATION OF KNOWLEDGE IN THE LAST TWO CENTURIES HAS LED TO A FAITH IN SCIENCE THAT:
A) CAUSES HUMAN BEINGS TO TURN ON OTHER HUMAN BEINGS B) IS THE MAIN CAUSE OF POVERTY AND WAR C) LEADS TO OPPRESSION OF EDUCATION D) NONE OF THESE[/QUOTE] The correct answer is "D" not "A". Since it says that education causes human beings to turn [U]on[/U] other beings [U]not to [/U]other human beings. [QUOTE]15) HOW LONG DOES OUR EARTH TAKES TO TURN ABOUT ITS AXIS A) ONE HOUR B) 23 HOURS C) 24 HOURS D) NONE OF THESE[/QUOTE] The correct answer in my opinion is "D". Since the rotation time is 23 hours 56 minutes. |
Eds objective
All hormones are proteins it y wrong as testosterøne, estrogens r steroids, and thyroxine z amino acid. So ans z (d) none of these.
Earth completes its rotation in 24 n 1/4 hrs so ans z 24 hr. Exact sequence of high energy components z fat>protein> carbohydrate. It was nt the option so ans z (D) nöne of these. Conductive Deafness due to otitis media z an infective disease... |
EDS objective
[QUOTE=aamir042;428642]5) THE PROLIFERATION OF EDUCATION AND DISSEMINATION OF KNOWLEDGE IN THE LAST TWO CENTURIES HAS LED TO A FAITH IN SCIENCE THAT:
A) CAUSES HUMAN BEINGS TO TURN ON OTHER HUMAN BEINGS B) IS THE MAIN CAUSE OF POVERTY AND WAR C) LEADS TO OPPRESSION OF EDUCATION D) NONE OF THESE The correct answer is "D" not "A". Since it says that education causes human beings to turn [U]on[/U] other beings [U]not to [/U]other human beings. 15) HOW LONG DOES OUR EARTH TAKES TO TURN ABOUT ITS AXIS A) ONE HOUR B) 23 HOURS C) 24 HOURS D) NONE OF THESE The correct answer in my opinion is "D". Since the rotation time is 23 hours 56 minutes.[/QUOTE] Dear Amir! I think it should be option A because, besides the minor gramatical error, rest of the statement of this option seems to be comprehensive and logical. Now comes the second part, here also 23 hour and 56 minute approximately are equal to 24 hour and that is what we hear everyday. (as it was Everyday Science paper :-) ). Besides all this, I appreciate that you pinpointed very minor details of MCQs. Regards, |
EDS objective
[QUOTE=Greatniazi;428719]All hormones are proteins it y wrong as testosterøne, estrogens r steroids, and thyroxine z amino acid. So ans z (d) none of these.
Earth completes its rotation in 24 n 1/4 hrs so ans z 24 hr. Exact sequence of high energy components z fat>protein> carbohydrate. It was nt the option so ans z (D) nöne of these. Conductive Deafness due to otitis media z an infective disease...[/QUOTE] Dear Niazi! Please share your source of information with each correction, so that I may have a better idea of the correct answers. Regards, |
23 hours 56-58 minutes
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reply
yar for hormones u can consult any book of physiology eg guyton or ganong physiology. even on google just insert steroid hormones u vl get ample info. for energy yielding biochemistry eg lippencot. or net. for deafness ent by dhingra. :huh:huh:huh and onething more dTMP z the monomer of DNA nt dGTP it z a energy molecule so ans z dTMP. need refernce for this?:):):):):):)
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[QUOTE=Greatniazi;428805]yar for hormones u can consult any book of physiology eg guyton or ganong physiology. even on google just insert steroid hormones u vl get ample info. for energy yielding biochemistry eg lippencot. or net. for deafness ent by dhingra. :huh:huh:huh and onething more dTMP z the monomer of DNA nt dGTP it z a energy molecule so ans z dTMP. need refernce for this?:):):):):):)[/QUOTE]
dear niazi dGTP...which is Deoxyguanosine triphosphate is component of DNA. it is one of 4 nitrogenous basis used for DNA synthesis.the other three are adenine,thymine,cytosine.these four bases+deoxyribose sugar and phosphate group join to form DNA double helix. [QUOTE=Arslan Shaukat;428149]1) 33) PROKARYOTES HAVE WHICH OF THE FOLLOWING STRUCTURES? A) NUCLEUS [B]B) MITOCHUNDRIA[/B] C) CHLOROPLAST D) NONE OF THESE [/QUOTE] prokaroytes posses none of these structures.all the three organelles are membrane bounded and prokayotes have no membrane bounded structure. so the answer was D(none of these) |
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