LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

GA 22

M.Sc. DEGREE EXAMINATION – ZOOLOGY

THIRD SEMESTER – November 2008

    ZO 3807 – INTEGRATED PHYSIOLOGY

 

 

 

Date : 05-11-08                 Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

Section-A

Answer ALL the Question                                                                                   (10 x 2 =20 Marks)

1. What is a pace maker?
2. What is Cushing’s syndrome?
3. Comment on Pacinian corpuscles.
4. Differentiate granulocytes from agranulocytes.
5. Give the important functions of folic acid in man.
6. Write  a note on acetylcholine
7. What is blind spot?
8. Comment on organs of balance and equilibrium.
9. What do you mean by imprinting?
10. Distinguish rheotaxis from galvanotaxis.

 

Section-B

Answer any FOUR of the following                                                                 (4 x 10=40 Marks)

1. Deep sea organisms overcome high pressure- Explain.
2.  What is the role of gastrointestinal hormones?
3. Write notes on synapses and synaptic transmission.
4. Schematically explain the cycle of Cori.
5. Explain the physiology of electric organs.
6. Explain the physiological adaptation to extreme temperatures.

 

Section-C

Answer any TWO of the following                                                                   (2 x 20=40 Marks)

 

1. Discuss Carbohydrate metabolism.
2. Explain in detail osmoregulation in vertebrates.   And add a note on their hormonal regulation.
3. What are steroid hormones?   Explain their role in both the sexes.
4. Write notes on     a) Hibernation & Aestivation b) Pigment effector cells.

 

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