NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
NOVEMBER 2018 EXAMINATION

COURSE CODE: BIO306

COURSE TITLE: GENERAL PHYSIOLOGY II

CREDIT: 2 Units

TIME ALLOWED: 2 Hours

INSTRUCTION: Answer Question ONE (1) and any other THREE (3) Questions

1a. Outline the functions of the mammalian kidney (5 marks)

  b. List the three common eye defects (3 marks)

  c. Describe the mechanism of hearing (4 marks)

  d. Distinguish between osmoconformers and osmoregulators (3 marks)

  e. Enumerate the significance of the following:

      (i) diffusion (5 marks)

      (ii) osmosis (5 marks)

2. Reflex response is applied in various ways in our daily activities. Discuss using relevant examples (15 marks)

3a. Define the term osmoregulation (2 marks) 

   b. Enumerate the factors affecting imbibition (5 marks)

   c. Describe the relationship between osmotic equilibrium and ionic composition in marine animals. (8 marks)

4a. Give an account of the nature and functions of hormones. (7 marks)

  b. Briefly describe any four urinary disorders. (8 marks)

5a. Define the term guttation. (3 marks)

  b. Give a detailed account of the perception of body balance (6 marks)

  c. Write short notes on the following:

           (i) Chorion (3 marks)  

          (ii) Allantois (3 marks)