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Zoology Papers 2001

[CENTER][CENTER][B]FEDERAL PUBLIC SERVICE COMMISSION[/B][/CENTER]
[/CENTER]
[CENTER][CENTER][B]COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS[/B][/CENTER]
[/CENTER]
[CENTER][CENTER][B]IN BPS – 17 UNDER THE FEDERAL GOVERNMENT, 2001.[/B][/CENTER]
[/CENTER]

[CENTER][CENTER][B][U]ZOOLOGY, PAPER - I[/U][/B][/CENTER]
[/CENTER]

[CENTER][CENTER][B][U]TIME ALLOWED: THREE HOURS MAXIMUM MARKS:100[/U][/B][/CENTER]
[/CENTER]

[B]NOTE: Attempt FIVE questions in all, including question No. 7 which is COMPULSORY. Select at least TWO QUESTIONS from each of the SECTIONS ‘A’ AND ‘B’. All questions carry EQUAL marks.[/B]

[CENTER] [B]SECTION ‘A’[/B]
[/CENTER]

1. (a) Briefly describe four different methods of ASEXUAL REPRODUCTION met in the PROTOZOA. (7)
(b) Give a brief account of different types of species found in PORIFERA. (7)
(c) Define POLYMORPHISM. Discuss the phenomenon with reference to order SIPHONOPHORA (COELENTRATA). (6)

2. (a) Write a short essay on affinities of CTENOPHORA. (6)
(b) Discuss the general adaptation of parasitic mode of life with special reference to phylum PLATY HELMINTHES. (7)
(c) Give an account of two broad types of NEPHRIDIA found in POLYCHAETA. (7)

3. (a) Define METAMORPHOSIS and discuss the phenomenon with reference to INSECTS. (7)
(b) Write a short essay on TORISON in GASTROPODA. (7)
(c) Discuss REGENERATION with special reference to ECHINODERMS. (6)

[CENTER][U][B] SECTION ‘B’

[/B][/U][/CENTER]
4. (a) Discuss the possible origin of the CHORDATES. (7)
(b) Give a brief account of the evolutionary changes in HEART in different classes of CHORDATES. (7)
(c) Write a short note on anatomy of the MAMMALIAN KIDNEY. (6)

5. (a) Describe the two basic types of CLEAVAGE with reference to CHORDATES. (7)
(b) Write an essay on PLACENTATION IN MAMMALS. (6)
(c) Develop an outline on adaptation of FLIGHT IN BIRDS. (7)

6. Write short notes on the following: (20)
(a) CAUDAL FINS IN FISH
(b) NOTOCHORD
(c) VIVIPARITY
(d) FEATHERS IN BIRDS

[CENTER][CENTER][B][U]COMPULSORY QUESTION

[/U][/B][/CENTER]
[/CENTER]
7. Write only the correct answer in the Answer Book. Do not reproduce the questions.
[B]
(A) Which of the four options make the following statement correct? On your answer books just write the question number and one of the serial alphabets.[/B]

(1) Insects are characterized by:
(a) 3 pairs of legs
(b) Two pairs of antennae
(c) Wings on body
(d) Large sized eggs
(e) None of these

(2) Body is metamorically segmented in:
(a) Porifera
(b) Annelida
(c) Coelentrata
(d) None of these

(3) Which of the following arthropod are totally aquatic?
(a) Crustaceans
(b) Insects
(c) Milipedes
(d) None of these

(4) Dorsal tubular nerve cord is characteristic of:
(a) Some chordates
(b) Some non chordates
(c) All non chordates
(d) All chordates
(e) None of these

(5) Opposable thumbs are characteristic feature of:
(a) Lagomorpha
(b) Primates
(c) Edentata
(d) None of these

(6) Differences in the scales of fishes and reptiles lies in their being:
(a) Endodermal and dry
(b) Epidermal and dry
(c) Epidermal and wet
(d) Endodermal and wet
(e) None of these

(7) Which of the following has oxygenated blood?
(a) Renal veins
(b) Pulmonary veins
(c) Pulmonary artery
(d) Hepatic portal veins
(e) None of these

(8) Scapula is the bone of:
(a) Skull
(b) Pelvic girdle
(c) Pectoral girdle
(d) Vertebral column
(e) None of these

(9) All the digestive are formed in vertebrates by:
(a) Ectoderm only
(b) Endoderm only
(c) Mesoderm only
(d) None of these

(10) Ammonia is chief excretory product in
(a) Reptiles
(b) Turtles
(c) Mammals
(d) Fish
(e) None of these

[B]
(B) Check which of the following statements are true or false. On your answer sheets just write the question number and T or F.[/B]

(11) Coelme is lined by ectodermal epithelium
(12) Non-chordates are dissected from dorsal side.
(13) All snakes are poisonous.
(14) Mouth in sharks is located on anterior side.
(15) Frogs have 3 cervical vertebrae.
(16) Contractile vacuole in protozoa is basically an excretory organ.
(17) Nerve cord in chordates is Endodermal in origin.
(18) Whale is the largest mammals living in sea.
(19) Both male and female mosquitoes bite and carry parasites.
(20) The gammules are produced in coelenterates.

[CENTER][CENTER][B]FEDERAL PUBLIC SERVICE COMMISSION[/B][/CENTER]
[/CENTER]
[CENTER][CENTER][B]COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS[/B][/CENTER]
[/CENTER]
[CENTER][CENTER][B]IN BPS – 17 UNDER THE FEDERAL GOVERNMENT, 2001.[/B][/CENTER]
[/CENTER]

[CENTER][CENTER][B][U]ZOOLOGY, PAPER II[/U][/B][/CENTER]
[/CENTER]

[CENTER][CENTER][B][U]TIME ALLOWED: THREE HOURS MAXIMUM MARKS:100[/U][/B][/CENTER]
[/CENTER]

[B]NOTE: Attempt FIVE questions in all, including question No. 8 which is COMPULSORY. All questions carry EQUAL marks.[/B]

1. Give an account of the following:
(a) Meiosis and its significance. (12)
(b) The role of Nucleic Acid in Protein Synthesis. (8)

2. Write short notes on: (5+5+5+5)
(a) Nucleolus
(b) Lysosome
(c) Chromosomal aberrations.
(d) Gene concept

3. Give in detail the account of functions of various hormones produced by different lobes of Pituitary gland. (20)

4. Discuss in detail the relationship between ontogeny and Phylogeny. (20)

5. Give an account of sources, effects and control of Air Pollution. (20)

6. Give an account of:
(a) Sex-linked inheritance. (12)
(b) Linkage and crossing over. (8)

7. Give short notes on: (5+5+5+5)
(a) Nitrogen cycle
(b) Lateral line system
(c) Respiratory pigments found in America
(d) Erythocytes

[CENTER][CENTER][B][U]COMPULSORY QUESTION[/U][/B][/CENTER]
[/CENTER]
8. Write only the correct answer in the Answer Book. Do not reproduce the questions.
(1) Life originated during:
(a) Pre-cambrian period
(b)Mesozoic era
(c) Coenozoic era.
(d) Proterozoic era
(e) None of these

(2) Pancreas secrete:
(a) Pepsin
(b) Only hormones
(c) Only enzymes
(d)Both (a) and (b)
(e) None of these

(3) Louis Pasture is known for:
(a) Germ theory of disease
(b) Germ plasm theory
(c) Mutation theory
(d) Cell theory
(e) None of these

(4) Life originated:
(a) In air
(b) On land
(c) In water
(d) In all (a), (b) and (c)
(e) None of these

(5) Virus are:
(a) Unicellular
(b) Acellular
(c) Multicellular
(d) Free living
(e) None of these

(6) Wings of insects and bats are examples of:
(a) Homologous organs
(b) Analogous organs
(c) Both (a) and (b)
(d) Vestigial organs
(e) None of these

(7) Archeopteryx is a connecting link between:
(a) Amphibians and reptiles
(b) Reptiles and birds
(c) Birds and mammals
(d) Amphibians and birds
(e) None of these

(8) Lamarck’s theory of Evolution is based upon:
(a) Effect of environment
(b) Use and disuse of body parts
(c) Inheritance of Acquired characters
(d) All of these
(e) None of these

(9) Absorption of digested food occurs mainly in:
(a) Colon
(b) Small intestine
(c) Large intestine
(d) Stomach
(e) None of these

(10) A renal portal system is found in:
(a) Man
(b) Horse
(c) Rabbit
(d) Frog
(e) None of these

(11) Tangoreceptors respond to:
(a) Heat
(b) Smell
(c) Chemicals
(d) Touch
(e) None of these

(12) Third ventricle is found in:
(a) Brain of Rabbit
(b) Heart of Rabbit
(c) Kidney of Frog
(d) Heart of Frog
(e) None of these

(13) Blood from glomerulus returns by:
(a) Afferent renal arteriole
(b) Efferent renal arteriole
(c) Both of these
(d) Renal vein
(e) None of these

(14) Vital morphological and Physiological units of Mammalian Kidney are:
(a) Ureters
(b) Seminiferous tubules
(c) Uriniferous tubules
(d) All of these
(e) None of these

(15) Which of the following secretes Oxytocin:
(a) Adrenals
(b) Pituitary
(c) Thyroid
(d) Ovaries
(e) None of these

(16) Longest cells in animals are:
(a) Nerve cells
(b) Egg cells
(c) Kidney cells
(d) Liver cells
(e) None of these

(17) Function of centromere is to:
(a) Initiate cell division
(b) Inhibit cell division
(c) Provide site for cell division
(d) Do all of these
(e) None of these

(18) Which of the following has extranuclear DNA:
(a) Mitochondria
(b) Lysosomes
(c) Golgi complex
(d) All of these
(e) None of these

(19) Who gave laws of segregation and Dominance?
(a) Mendel
(b) Morgan
(c) Darwin
(d) Muller
(e) None of these

(20) Adrenal glands are found in close association with:
(a) Testes
(b) Spleen
(c) Liver
(d) Ovaries
(e) None of these

[B]zoology paper I compulsory question 2001:[/B]
(1) Insects are characterized by:
(a) 3 pairs of legs

(2) Body is metamorically segmented in:
(b) Annelida

(3) Which of the following arthropod are totally aquatic?
(a) Crustaceans

(4) Dorsal tubular nerve cord is characteristic of:
(d) All chordates

(5) Opposable thumbs are characteristic feature of:
(b) Primates

(6) Differences in the scales of fishes and reptiles lies in their being:
(a) Endodermal and dry
(b) Epidermal and dry
(c) Epidermal and wet
(d) Endodermal and wet
(e) None of these

(7) Which of the following has oxygenated blood?
(b) Pulmonary veins

(8) Scapula is the bone of:
(c) Pectoral girdle

(9) All the digestive are formed in vertebrates by:
((b) Endoderm only

(10) Ammonia is chief excretory product in

(d) Fish

(B) Check which of the following statements are true or false. On your answer sheets just write the question number and T or F.

(11) Coelme is lined by ectodermal epithelium [B]false[/B]
(12) Non-chordates are dissected from dorsal side. [B]true[/B]
(13) All snakes are poisonous. [B]false[/B]
(14) Mouth in sharks is located on anterior side. [B]true[/B]
(15) Frogs have 3 cervical vertebrae. [B]false[/B]
(16) Contractile vacuole in protozoa is basically an excretory organ. [B]tru[/B](17) Nerve cord in chordates is Endodermal in origin. [B]false[/B]
(18) Whale is the largest mammals living in sea. [B]true[/B]
(19) Both male and female mosquitoes bite and carry parasites. [B]false[/B]
(20) The gammules are produced in coelenterates. [B]false[/B]

please correct me where i am wrong.
regards

[B]COMPULSORY QUESTION
ZOOLOGY PAPER II 2001[/B]

(1) Life originated during:
(a) Pre-cambrian period

(2) Pancreas secrete:
(b) Only hormones
(
(3) Louis Pasture is known for:
(a) Germ theory of disease

(4) Life originated:
(c) In water

(5) Virus are:
(e) None of these

(6) Wings of insects and bats are examples of:
(b) Analogous organs

(7) Archeopteryx is a connecting link between:
(b) Reptiles and birds

(8) Lamarck’s theory of Evolution is based upon:
(d) All of these

(9) Absorption of digested food occurs mainly in:
(b) Small intestine

(10) A renal portal system is found in:
(a) Man
(b) Horse
(c) Rabbit
(d) Frog
(e) None of these

(11) Tangoreceptors respond to:
(d) Touch
(12) Third ventricle is found in:
(e) None of these

(13) Blood from glomerulus returns by:
(b) Efferent renal arteriole

(14) Vital morphological and Physiological units of Mammalian Kidney are:
(a) Ureters

(15) Which of the following secretes Oxytocin:
(e) None of these

(16) Longest cells in animals are:
(a) Nerve cells

(17) Function of centromere is to:
(c) Provide site for cell division

(18) Which of the following has extranuclear DNA:
(a) Mitochondria

(19) Who gave laws of segregation and Dominance?
(a) Mendel

(20) Adrenal glands are found in close association with:
(d) Ovaries

[B]zoology paper II [/B]
10) the renal portal system is found in
d)frog

@ Prissygirl

Following are the corrections.....I advice you to work on CNS Anatomy and hormones:

(2) Pancreas secrete:
(e) None of these

Because pancreas also secretes digestive enzymes like chymotrysinogen, pancreatic amylase, trypsinogen etc., therefore, the best choice is (e)

(12) Third ventricle is found in:
(a) Brain of Rabbit

Here examiner asked about ventricle of brain and third ventricle is located in diencephalon. Therefore, the best choice is (a)

(14) Vital morphological and Physiological units of Mammalian Kidney are:
(a) Ureters
(b) Seminiferous tubules
(c) Uriniferous tubules
(d) All of these
(e) None of these

Nephron is the vital morphological and physiological unit of kidney and it is not in the choices so (e) is the best answer.

(15) Which of the following secretes Oxytocin:
(a) Adrenals
(b) Pituitary
(c) Thyroid
(d) Ovaries
(e) None of these

Pituitary gland secretes oxytocin, a vital hormone responsible for milk production and secretion;parturition;orgasm; therefore, (b) is the best choice.

(20) Adrenal glands are found in close association with:
(a) Testes
(b) Spleen
(c) Liver
(d) Ovaries
(e) None of these

Adrenal gland is in close association with Kidneys; therefore, (e) is the best choice.

Thanks

regards

SECONDOPINION02

I request from all those who have taken zoology as their optional that if they have the answer of the following question, then please let me know the source or provide me the notes. I shall be very thankful to you:

(b)What is the basic excretory product? Discuss different excretory substances produced in different animals.(12).

Thanks

regards

Secondopinion02

P.S: I would also be glad to have any service on myself if you need any.

thanx for the correction scond opinion.butthere is still one confusion,which i want to make clear is:oxytocin is the hormone secreted from the hypothalamus of the brain and is stored in the lobe of the pitiutary gland.

u can easily get the answer of ur question from the fsc II book

Oxytocin confusion

Prissygirl,

Both the answers are right coz Oxytocin is released both from Hypothalamus and Pituitary; in order to make it clear I would like to explain the justification:

1. Pituitary gland is present under the hypothalamus like "a pea having a stalk"

2. Pituitary gland has two lobes in humans: i) Anterior lobe ii) Posterior lobe

3. The posterior lobe receives ready made hormones from the hypothalamus; therefore, posterior lobe acts as a storage area for the hormones from hypothalamus

4. Anterior lobe is composed of glandular tissue and itself manufacture and release the hormones.

Now answer to the confusion:

As the posterior pituitary lobe gets hormone from the hypothalamus; therefore, first hypotalamus releases the hormone i.e, oxytocin, for the posterior pituitary lobe for storage. There are various hormones that are released from hypothalamus to the posterior pituitary, e.g., Oxytocin and ADH (Antidiuretic Hormone).From posterior pituitary lobe, the Oxytocin is released in general circulation.

Therefore, Oxytocin is first released from "Hypothalamus to Posterior lobe of Pituitary gland" and then it is released from "Posterior lobe to the general circulation"

The above explanation is based on an authentic book "Human Anatomy and Phsiology" fourth edition by ELAINE MARIEB, R.N., Ph.D

thanks