Biol 224-internal 2005

Universal Science College (B. Sc. Biochemistry)

Fourth Semester 2005

Internal Examination Subject: Biol 224 (Human Biology) Date: July 26, 2005

Full Marks: 100 Pass Marks: 45 Time: 3 hours

Candidates are required to give their answers in their own words as far as practicable. The figure in the margin indicates full marks. Group (A) (3× ×14 = 42)

Long Questions (Any three) 1. 2. 3. 4.

What are proteins? Describe various types of proteins and their utility in the body. Define respiration. Describe the organ of respiration in man. What is the hormone? Describe the structure and function of thyroid and adrenal gland. Explain the male reproductive system of human being.

Group (B) Short Questions: (Any six) (6× ×7 = 42) 1. Describe the water solution vitamins. 2. Explain the mouth cavity of man. 3. Draw a well labelled diagram of the human eye. 4. Explain how the ear balances the body. 5. Describe the external genitalia of human female. 6. Explain how O2 and CO2 are transported during respiration. 7. Define heart, arterial and venous system. Explain in brief, the pulmonary venous system of man. 8. Write all about human testis. Group (C) (2× ×8 = 16)

Very Short Questions: (Any eight) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

What is the difference between rod cells and cone cells of retina. Mention the function of sertoli cells. Explain the role of water in the process of digestion. What is the number of root in the upper molar teeth? Mention various functions of nose (nasal passage or nostrils). What is fovea centralis? Which endocrine gland is known as 'emergency gland'? Explain the terms – 'Morphology' and 'Anatomy'? Write down your dental formula. Which arteries distribute the blood to the heart muscles? Why do the high Himalayan peoples have red chicks? What happens when there is dietary deficiency of vitamin 'C'.? ***