Quote:
Originally Posted by Argus
Everyday Science
10. Fill in the blanks with appropriate words: ( 1 each)
(a) Monomer of proteins are_____________________________.
(b) Water transport in plants occurs within __________________.
(c) Underground horizontal stems are called_________________.
(d) In the eye, only ______________ contain receptors for light energy.
(e) Plant ________________ control plant responses to environmental stimuli.
(f) _____________ are often called the power houses of the cell.
(g) The rate at which a current changes direction is called its __________.
(h) The energy of electrons at the negative terminal of a battery is called ____________________.
(i) __________________is the smallest planet of the solar system.
(j) Diamond is an allotropic form of the element____________________.
12. Which of the following statements are False and which are True: ( 1 each)
(a) In the circulatory system two pulmonary arteries take blood from the left ventricle to the lungs.
(b) Anaphase is the stage of mitosis during which the daughter chromosomes move towards the poles.
(c) The Motor neurons carry nerve impulses from the central nervous system to the effectors.
(d) Cochlea is a part of the middle ear.
(e) Tides happen due to the moon’s gravitational pull.
(f) Heavy water contains salts of Calcium and Magnesium.
(g) All non-metals exist in gaseous state.
(h) A parachute can be used by a spaceman to help in landing on the moon.
(i) The gemstones Ruby and sapphires are composed of Aluminum Oxide.
(j) In a chemical battery chemical energy ions directly converted into mechanical energy.
13. Choose the correct answers. Don’t reproduce the questions. ( 1 each)
(i) Speed of the wind is measured by: (a) Barometer (b) Hygrometer (c) perimeter
(d) Anemometer (e) None of these.
(ii) _____________ connects the muscle with the bone.
(a) Cartilage (b) Ligament (c) Tendon
(d) Disc (e) None of these.
(iii) Polio is caused by a:
(a) Bacterial (b) Virus (c) Fungus
(d) Deficiency of vitamin (e) none of these.
(iv) The coldest planet of the solar system is:
(a) Earth (b) Venus (c) Mars
(d) Pluto (e) None of these
(v) ________________ is a vitamin:
(a) Citric acid (b) Tartaric acid (c) Ascorbic acid
(d) Acetic acid (d) none of there
(vi) An eggshell is composed of:
(a) Iron (b) Starch (c) Carbon
(d) Protein (e) None of these.
(vii) The most abundant element in the earth’s crust is:
(a) Nitrogen (b) Silicon (c) Carbon
(d) Oxygen (e) None of these
(viii) The main constituent of Biogas is:
(a) Methane (b) Hydrogen (c) Oxygen
(d) Carbon dioxide (e) None of these.
(ix) Stalagmites are deposits of :
(a) Calcium oxide (b) Calcium sulphate
(c) Calcium hydroxide (d) Calcium carbonate
(e) Mixture of all salts.
(x) Gigantism is the result of:
(a) Hypothyroidism (b) Recessive gene
(c) Hyper pituitarism (d) Vitamin D deficiency (e) None of these.
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10. Fill in the blanks with appropriate words: ( 1 each)
(a) Monomer of proteins are
Amino Acids.
(b) Water transport in plants occurs within
Stems.
(c) Underground horizontal stems are called
Stolon.
(d) In the eye, only
Retina (Rods and Cones) contain receptors for light energy.
(e) Plant
Tropisms control plant responses to environmental stimuli.
(f)
Mitochondria are often called the power houses of the cell.
(g) The rate at which a current changes direction is called its
Frequency (Unit is hertz).
(h) The energy of electrons at the negative terminal of a battery is called _________
??___________.
(i)
Mercury (Pluto is no more a planet) is the smallest planet of the solar system.
(j) Diamond is an allotropic form of the element
Carbon.
12. Which of the following statements are False and which are True: ( 1 each)
(a) In the circulatory system two pulmonary arteries take blood from the Right and not left ventricle to the lungs thus it is
False
(b) Anaphase is the stage of mitosis during which the daughter chromosomes move towards the poles.
Not sure but i guess true!
(c) The Motor neurons carry nerve impulses from the central nervous system to the effectors.
True (To do a certain task)
(d) Cochlea is a part of the middle ear.
(False, its inner ear)
(e) Tides happen due to the moon’s gravitational pull.
(True, via sun)
(f) Heavy water contains salts of Calcium and Magnesium.
(False, thats hard water, heavy water is D20)
(g) All non-metals exist in gaseous state.
(False, carbon, sulphur etc are non metals)
(h) A parachute can be used by a spaceman to help in landing on the moon.
(False, As there is no atmosphere at moon)
(i) The gemstones Ruby and sapphires are composed of Aluminum Oxide.
(True)
(j) In a chemical battery chemical energy ions directly converted into mechanical energy.
(False, electrical energy)
13. Choose the correct answers. Don’t reproduce the questions. ( 1 each)
(i) Speed of the wind is measured by: (d)
Anemometer
(ii)
Tendon connects the muscle with the bone.
(iii) Polio is caused by a:
Virus
(iv) The coldest planet of the solar system is:
Pluto (Now Neptune)
(v)
Ascorbic Acid is a vitamin:
(vi) An eggs shell is composed of:
None of these (Calcium Carbonate).
(vii) The most abundant element in the earth’s crust is
b)
Silicon
(viii) The main constituent of Biogas is: (a)
Methane
(ix) Stalagmites are deposits of : (d)
Calcium carbonate
(x) Gigantism is the result of: (c)
Hyper pituitarism