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[h=2]Zoology Papers 2009[/h]
Zoology I
SECTION I
Solve 2 questions from each section. Total of four questions.
Q 1. a : Write an essay on “Protozoa and diseases”
b. What are coral reefs? Give an account of various forms of coral reefs.6
c. Coelenterates show some resemblances with Porifera. Discuss briefly 4
Q2: a Give an account of canal system in sponges.
b. what is adaptation? Briefly discuss parasitic adaptations in platyhelminthes.
c. define the following terms. 4 marks.
1. Polymorphism
2. Metamerism
3. parasitism
4. osmoregulation.
Q3 Describe water vascular system of Echinodermata
b. Give an account of human diseases caused by nematodes.
c. what is conjugation? Briefly discuss its significance
Q4. write short notes on:
1. torsion in gastropods
2. flame cells
3. spicules
4.coelom.
SECTION II
Q5 a write an essay on flight adaptations of birds.
b. what is cleavage? Describe its types , with example found in chordates.
c. what are the functions of blood.
Q6. what is placenta? Give its classification in mammals according to the mode of implantation.
b. describe various types of heart found in vertebrates
c.give classification of vertibrate eggs according to the quantity of yolk they contain
Q7 write short notes on
1. uriniferous tubule of a mammal
2. neuron
3. function of skin
4. structure of bone.
Part 1- MCQ(compulsory)
Q1. Select the best option.
i)What is the function of contractile vacuole?
a) Respiration b) reproduction c) osmoregulation d) digestion e) none of these
ii) specules are secreted by special mesenchymal amoebocytes called
a)scleroblasts b)microscleres c)myocytes d)collencytes e) none of these
iii) true nerve cells or ganglion cells occur for the first time in
a) protozoa b) porifera c)coelentrata d)annelida e) none of these
iv)the process by which an organism can replace its lost or damaged body parts is called
a) reformation b) regeneration c)reclamation d)reconstruction e) none of these
v) nematocysts are found in
a) protozoa b)porifera c) annelida d) mollusca e) none of these
vi) in polychaetes the locomotory organ is
a)pseudopodium b) neuropodium c) notopodium d) parapodium e) none of these
vii) worms belonging to phylum platyhelminthes are commonly known as
a)round worms b) ring worms c) segmented worms d) earth worms e) none of these
viii) bipinnaria is the larval form of
a) coelentrata b) polychaeta c) echinodermata d)cestoda e) none of these
ix)closed type of circulatory system is found in
a) platyhelminthes b) annelida c)porifera d) arthropoda e) none of these
x) the two common mosquito genera ,anopheles and culex, can be easily identified by
a)color b) flying speed c)size d) sitting posture e) none of these
xi) sweat glands are epidermal glands found in
a)all birds b) reptiles and mammals c) mammals only d)birds and reptiles e) none of these
xii)sternum is absent in
a) mammals b) birds c)amphibians d)fishes e) none of these
xiii) amphioxus belongs to
a)cephalochordata b) hemichordata c)urochordata d) cyclostoma e) none of these
xiv) the urochordates or tunicates are marine animals commonly known as
a)sea cucumber b)sea squirts c) sea urchin d) sea star e) none of these
xv) optic lobes are found in
a)fore brain b) mid brain c) hind brain d) medulla e) none of these
xvi) the number of cervical vertebrae in most mammals is
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[h=2]Zoology CSS Paper I 2008[/h]
Zoology Paper I 2008
SECTION I
Q.2 a) Explain different types of parasitic adaptations in platy helminthes (10)
b) Explain the medical importance of plasmodium (4)
c) Insects respiration is through tracheal tubes. Explain its structure along with its working. (6)
Q.3 a) What are spicules? Explain various types of spicules in sponges. What is their importance in the classification of sponges? (10)
b) Draw label V.S of polyp of obelia (5)
c) Write a note on metamerism (5)
Q.4 Write short notes on the following:
a) Coral reef (4)
b) Coelome (4)
c) Tube feet in echinoderms (4)
d) Foot in mollusa (4)
SECTION II
Q.5 a) Discuss different types of hearts found in vertebrates. (10)
b) State the different types of eggs on the basis of amount and distribution of yolk (5)
c) What is gastrulation? State gastrulation in microlecithal and mesolecithal eggs (5)
Q.6 a) Write an essay on biting mechanism of snakes (10)
b) Mention structure of bone in vertebrates (5)
c) Give various function of skin in vertebrates (5)
Q.7 a) Give cellular blood components of vertebrates (10)
b) What is a portal system? Explain hepatic portal system of vertebrates. (10)
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[h=2]Zoology CSS Paper II 2008[/h]
Zoology Paper II 2008
SECTION I
Q.2 a) Describe structure, chemical composition and function of mitochondria. (10)
b) Discuss the mechanism of replication of DNA (10)
Q.3 a) Describe mechanism of resting membrane potential into action membrane potential. (10)
b) Define respiration. Discuss mechanism involved in transportation of oxygen. (10)
Q.4 a) Explain mendals law of independent assortment. (10)
b) Describe diversity in digestive structures of invertebrates. (10)
SECTION II
Q.5 a) What is biochemistry of hormones? Explain mechanism of hormone action. (10)
b) Describe species concept in detail. (10)
Q.6 a) What are cytoskeletons? Explain different types of cytoskeleton found in a cell. (10)
b) Write an essay on protein synthesis. ((10)
Q.7 a) What is sex linked inheritance? Explain in humans. (10)
b) Give ultra structure and morphology of chromosomes. (10)
Q.8 Write note on the following:
a) Transcription bubble (5)
b) Evidence from paleontology and comparative embryology in favor of evolution (5)
c) Pituitary gland (5)
d) Point mutation (5)
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[h=2]Zoology Paper I[/h]
[h=2]Zoology Paper II[/h]
[h=2]CSS (Zoology) Paper I[/h]
[h=2]CSS (Zoology) Paper II[/h]
