LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.Sc. DEGREE EXAMINATION – ZOOLOGY
THIRD SEMESTER – APRIL 2012
ZO 3810 – INTEGRATED PHYSIOLOGY
Date : 24-04-2012 Dept. No. Max. : 100 Marks
Time : 1:00 – 4:00
PART – A
Answer ALL the questions: (10 X 2 =20 Marks)
- Define diffusion coefficient.
- What are halophiles? Mention their physiological significance.
- What is cryptobiasis? Mention its importance.
- Distinguish exogenous and endogenous rhythms.
- Comment on Aschoffs rule.
- Mention any four causes for endocrine disorders.
- Differentiate neuromodulators and neurotransmitters.
- State “All or none law” in terms of caridiac muscles.
- Mention any two applications of bioluminescence.
- Expand TMOA and GABA.
PART-B
Answer any FOUR questions: (4 X 10 =40 Marks)
- Examine the neurohaemal and neurosecretory physiology of insects.
- Highlight the effects of toxins on human physiology.
- Outline the scope of chronobiology in terms of biological rhythm.
- Explain the laws of classical conditioning.
- “Kidney is an important organ of human body” – JUSTIFY.
- How do you estimate BMR?
PART-C
Answer any TWO questions: (2 X 20= 40 Marks)
- Elucidate homeostasis in human in terms of positive and negative feed back,
temperature regulation and osmoregulation.
- Examine the electroneurophysiology of vision.
- Illustrate the contractile machinery of a skeletal muscle and highlight the biochemical
changes during muscle contraction.
- Discuss the impacts of climatic factors on human physiology.
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