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2017
Zoology(Major)
Paper : 5.1
(Animal Physiology)
Full Marks : 60
Time : 3 hours
1. Answer the» following/Choose the correct answer : 1x7=7
(a) What is hematopoiesis?
(b) State the function of vitamin A.
(c) What do you mean by the partial pressure of gas?
(d) Which of the following has the greatest effect on the ability of blood to transport oxygen?
(i) Amount of haemoglobin in the blood
(ii) pH of plasma
(iii) Temperature of the blood
(iv) Capacity of blood to dissolve O
(e) Which of the following plays a crucial role in fat absorption?
(i) Pancreatic juice
(ii) Bile
(iii) GI hormone
(iv) Intestinal juice
(f) Which of the synaptic transmitters is not a peptide or protein?
(i) Dynorphin
(ii) Serotonin
(ii) β-endorphin
(iv) Met-enkephalin
(g) Which of the following cell types is responsible for skeletal muscle regeneration?
(i) Myoepithelial cell
(ii) Myofibril
(iii) Satellite cell
(iv) Fibroblast
2. Answer the following : 2x4=8
(a) What are clotting factors?
(b). Differentiate between Euryhaline and Stenohaline animals.
(c) Differentiate between S-A node and A-V node.
(d) Differentiate between Direct respiration and Indirect respiration.
3. Answer any three questions from the following : 5x3=15
(a) What are the different types of Leukocytes and how are they classified into granulocyte and agranulocyte? 5
(b) Justify—blood serves as a buffer. 5
(c) What is Rh factor? In which animal was it first discovered? How is the foetus with Rh-positive blood affected if the mother is Rh-negative? 1+1+3=5
(d) Describe the mechanism of water and electrolyte absorption. 5
(e) Briefly describe the oxygen-haemoglobin dissociation curve. 5
4. Define nutrition. Briefly describe its role in the process of digestion. 2+8=10
Or
Describe the functions of respiratory pigment. Briefly describe the CO, transport mechanism in human body. 2+8=10
5. What elements make up blood? Briefly describe the extrinsic and intrinsic»clotting mechanism of blood. 2+8=10
Or
How many types /of nitrogenous waste are there? Describe the hormonal control of kidney function. 3+7=10
6. What is osmoregulation? Briefly describe the hormonal control of osmoregulation. 3+7=10
Or
Describe the molecular mechanism of muscle contraction with suitable diagram. 10