1. a)Using a well labelled diagram outline the functions of eukaryotic cell organelles. (13 marks)
b)By providing appropriate examples,explain the concept of homeostasis (12 marks)
2. a)Discuss the initiation and the propagation of an action potential. (13 marks)
b)Discuss the process involved in transmission through a chemical synapse. (12 marks)
3. a)Draw a nephron and clearly label it. (6 marks)
b)List the functions of a nephron (4 marks)
C)Define the term “glomerular filtration rate (GFR) and outline the factors that influence it (10 marks)
d)Define the following terms with reference to the kidney (5 marks)
i)Re-absorption
ii)Secretion
iii)Excretion
iv)Ultrafiltration
4. a)write short notes on :- (15 marks)
i)Thermoneutral zone
ii)Hibernation
iii)Acclimatization
iv)Non-shivering thermogenesis
v)Counter-current heat exchange in the limbs
b)Discuss thermoregulatory reflexes in a mammalian body (10 marks)
5. a)List the functions of the female reproductive system (6 marks)
b)State the major event that takes place during an ovarian cycle in the: (9 marks)
i)Follicular phase
ii)Luteal phase
c)Using specific examples describe hormone classification (10 marks)
