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2016
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 erythroblastosis foetalis?
(b) Define balanced diet.
(c) What is Bohr effect?
(d) State the function(s) of angiotensin II.
(e) Group AB blood ‘contains
(i) antigen A
(ii) antigen B
(iii) both antigen A and antigen B
(iv) both antibody A and antibody B
(f) Phylloquinone is
(i) vitamin E
(ii) vitamin K
(iii) vitamin C
(iv) vitamin D
(g) Methioriine is
(i) Essential amino acid
(ii) Nonessential amino acid
(iii) Nucleotide
(iv) None of the above
2. Answer the following : 2x4=8
(a) Differentiate between internal respiration and external respiration.
(b) Differentiate between myelinated nerve fibre and nonmyelinated nerve fibre.
(c) Differentiate between open circulation and closed circulation.
(d) Differentiate between smooth muscle and skeletal muscle.
3. Answer any three questions from the following : 5x3=15
(a) Briefly describe about digestion and absorption of fats.
(b) Write a short notes on O2- dissociation curve.
(c) What is micturition ? How is it regulated ?
(d) State briefly about the structure and function of pancreas.
(e) Discuss in briefly about the causes,symptoms and treatment of high blood pressure and low blood pressure.
4. What do you understand by aerobic respiration? How do exchange and transportation of gases occur? State the name of different respiratory pigments. 1+7+2=10
Or
What do you understand by action potential? Discuss, with neat labelled diagram, the transmission of nerve impulses through
myelinated and nonmyelinated nerve fibres. 2+8=10
5. Give an account of the origin and conduction of heart beat in a myogenic heart. State the nervous regulation of heartbeat. 7+3=10
Or
What is,Rh factor? Discuss, in detail, about the’ blood clotting mechanism explaining both“intrinsic and extrinsic pathways. 1+(6+3)=10
6. Briefly describe the composition of. urine.Write about the counter-current mechanism of urine formation with neat labelled diagram. 2+8=10
Or
Define..osmoregulation. Give an illustrated account. of osmoregulation in marine vertebrate animals. 1+9=10