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Zool 415: Animal Physiology Question Paper

Zool 415: Animal Physiology

Course:(Bsc) In Education Science

Institution: Kabarak University question papers

Exam Year:2013

KABARAK UNIVERSITY

UNIVERSITY EXAMINATIONS
2012/2013 ACADEMIC YEAR

FOR THE DEGREE OF (BSC) IN EDUCATION SCIENCE

ZOOL 415: ANIMAL PHYSIOLOGY
DAY: FRIDAY

DATE: 16/08/2013
TIME: 2.00 – 4.00 P.M.

STREAM: Y4S1
INSTRUCTIONS:
Answer ALL Questions in Section A and any other TWO from Section B

Section A: Answer All Questions (40 Marks)
1.
a) Distinguish between the following terms:

i) Fever and hybernation
ii) Transcytosis and anastomosis
iii) Homeostasis and hemostasis

(6 marks)
b) List four differences between systemic and pulmonary circulation. (4 marks)

2.
a) List five differences between vein and arteries.

(5 marks)

b) Write explanatory notes on:
i) Electrolyte balance in marine vertebrates
ii) Cold hardiness in animals living in polar regions.
(5 marks)

3.
a) Describe the chemical composition and function of saliva.
(5 marks)

b) Describe the digestive role of duodenum.

(4 marks)

c) Explain the process of absorption of fat in mammals.

(5 marks)

4.
a) Explain briefly factors that influence dissociation of oxygen from haemoglobin.

(4 marks)
b) When animal body temperature is below set point, it is restored by behavioral
and physiological responses. Explain this statement

(6 marks)

Section B: Answer Two Questions Only (30 Marks)
5.
a) In an experiment, the following values were obtained: end diastolic volume =
80mL; end systolic volume = 20mL; heart rate = 60bpm; total lung capacity = 4.5
L; tidal volume = 0.8L; residual volume = 1L; and expiratory reserve volume =
0.5L. Calculate:

i) Stroke volume;
ii) Cardiac output;
iii) Vital capacity;
iv) Inspiratory reserve volume.
(7 marks)

b) State seven functions of respiratory system in higher animals. (6 marks)

6.
a) Assume that one ventricle of a child’s heart has an EDV of 90mL, and ESV of
60mL, and CO of 2.55L/min. Calculate the stroke volume and the heart rate.
(4 marks)
b) Use a sketch to illustrate the flow of blood through mammalian heart.
(4 marks)

c) Explain briefly five mechanisms that aid in venous flow of blood back
to the heart.

(5 marks)
7.
a) Draw a well labeled diagram of nephron of mammalian kidney. (5 marks)
b) Describe the role of mammalian kidney in water and electrolyte homeostasis.
(8 marks)

Zool 415: Animal Physiology Question Paper

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