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Zool 230: Vertebrate Anatomy And Physiology Question Paper

Zool 230: Vertebrate Anatomy And Physiology

Course:Bachelor Of Science In Agriculture And Extension

Institution: Chuka University question papers

Exam Year:2013

CHUKA

UNIVERSITY

UNIVERSITY EXAMINATIONS
SECOND YEAR EXAMINATION FOR THE AWARD OF DEGREE OF
BACHELOR OF SCIENCE (AGRICULTURAL EDUCATION AND EXTENSION)

ZOOL 230: VERTEBRATE ANATOMY AND PHYSIOLOGY

STREAMS: BSC (AGED &EXT) TIME: 2 HOURS

DAY/DATE: MONDAY 12/8/2013 8.30 AM-10.30 AM
INSTRUCTIONS:

Answer All Questions in Section A and any Two Questions in Section B

Section A (30 Marks)

1. (a) State two similarities between archaeopteryx and dinosaurs. [2 marks]

(b) State the role of Ampullae of lorenzini in vertebrates. [1 mark]

(c) Giving examples, briefly describe the structure of pronephros. [2 marks]

2. (a) Distinguish between the following:

(i) Corpus striatum and corpus callosum. [1 mark]

(ii) Tendons and ligaments [1 mark]

(iii) Vomeronasal organs and pit organs. [1 mark]

(b) State two differences between menstrual cycle and estrous cycle. [2 marks]

3. Explain briefly the hormonal control of lactation in mammals. [5 marks]

4. (a) State the site of production and the effects of the following vertebrate hormones

(i) Thyroxine [1 mark]

(ii) Melatonin [1 mark]
(b) Describe briefly the functional properties of parasymphatetic nervous system and symphatetic nervous system. [3 marks]

5. (a) State the role of the following in the vertebrate eye

(i) Nictating membrane. [1 mark]

(ii) Cones [1 mark]

(b) Describe briefly mechanoreception in fish. [3 marks]

6. Briefly describe distinguishing features of mammalian vertebrae. [5 marks]

Section B (40 Marks)

7. Discuss osmoregulatory mechanisms employed by vertebrates in order to survive in their habitats. [20 marks]

8. Describe the structure and function of mammalian male reproductive system.
[20 marks]

9. Describe the mechanism of skeletal muscle contraction. [20 marks]
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Zool 230: Vertebrate Anatomy And Physiology Question Paper

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