Get premium membership and access revision papers, questions with answers as well as video lessons.

Got a question or eager to learn? Discover limitless learning on WhatsApp now - Start Now!

Zool 436:Comparative Animal Physiology Question Paper

Zool 436:Comparative Animal Physiology

Course:Bachelor Of Education Science

Institution: Chuka University question papers

Exam Year:2014

INSTRUCTIONS:
Answer all Questions in Section A and Two Questions in Section B
Section A (30 marks)
1. (a) Give the benefits associated with the following:
(i) Closed circulatory system [1 mark] (ii) Endothermy [1 mark] (iii) Urea exretion [1 mark]
(b) Explain two factors that affect oxygen – haemoglobin dissociation curve. [2 marks]
2. (a) State Frank-Starling law of the heart. [1 mark]
(b) State the structural differences between Avian and Crocodilian heart. [1 mark]
(c) A man has a heart rate of 70 bpm, end diastolic volume of 110 ml and end systolic volume of 40 ml. Calculate his stroke volume and cardiac output. [4 marks]
(d) Explain two factors affecting end diastolic volume. [2 marks]
3. (a) Distinguish between the following
(i) Ventilation lungs and diffusion lungs [1 mark] (ii) Binary fission and multiple fission [1 mark]
2
(iii) Osmoconformers and osmoregulators [1 mark]
(b) Explain the following terms:
(i) Parthenogenesis [1 mark] (ii) Gular fluttering [1 mark] (iii) Brain cooling [1 mark] (iv) Chloride shift [1 mark]
4. (a) With the aid of examples, explain two types of hermaphrodites. [3 marks]
(b) Describe briefly the path of blood flow through octopus circulatory system. [2 marks]
5. (a) Discuss briefly how marine fish are adapted to their environment. [4 marks]
(b) Give one disadvantage of panting over sweating [1 mark]
Section B (40 marks)
6. With aid of well labeled diagrams, describe the structure and function of the following
(a) Malphigian tubules [10 marks]
(b) Metanephridia [10 marks]
7. (a) Describe the differences between mammalian and avian respiratory system. [10 marks]
(b) Describe respiratory surfaces in aquatic and terrestrial insects. [10 marks]
8. (a) Discuss the mechanism of heat production in endotherms. [10 marks]
(b) Discuss adaptations of ectotherms to extreme cold. [10 marks]
---------------------------------------------------------------------------------------------------------------------

Zool 436:Comparative Animal Physiology Question Paper

More Question Papers

Popular Exams