13. Retina in the eye acts as a
(a) Lens in the camera
(b) Shutter in the camera
(c) Film in the camera
(d) None of the above
14. The heart of a normal adult human being weighs about
(a) 200 grams
(b) 300 grams
(c) 400 grams
(d) 500 grams
15. In a normal human adult (at resting position), how much blood does the heart pump per minute?
(a) 1 litre
(b) 3 litre
(c) 5 litre
(d) 7 litre
16. A term that may be applied to all disease-producing micro-orgasms is
(a) Pathogenic
(b) Saprophytic
(c) Stapto-Cocci
(d) Viruses
17. In certain diseases antibiotics are administered. The object is to
(a) Stimulate production of white blood cells for fighting the disease
(b) Stimulate the production of antibodies
(c) Inhibit the growth of bacteria
(d) Produce toxins against bacteria
18. Sulfa drugs are effective against diseases caused by
(a) Bacteria
(b) Glandular upsets
(c) Vitamin deficiency
(d) Worms
19. A substance used for destroying micro-organisms and rendering the material sterile is called
(a) An antibody
(b) An antitoxin
(c) An antigen
(d) A disinfectant
20. Which of the following organisms causes Tuberculosis?
(a) Bacillus
(b) Cocci
(c) Protozoan
(d) Virus
21. Which of the following organisms causes Pneumonia?
(a) Bacillus
(b) Cocci
(c) Protozoan
(d) Virus
22. Which of the following organisms causes common cold?
(a) Bacillus
(b) Cocci
(c) Protozoan
(d) Virus
23. Which of the following organisms causes Cholera?
(a) Bacillus
(b) Cocci
(c) Protozoan
(d) Virus
24. The chief food of a male mosquito is
(a) Decaying organic matter
(b) Leaves of plants
(c) Nectar and fruit juices
(d) Micro-organisms found in water
25. The chief food of a housefly is
(a) Decaying organic matter
(b) Leaves of plants
(c) Nectar of flowers
(d) Micro-organisms found in water
Answers
1. (b) 2. (a) 3. (d) 4. (c) 5. (d)
6. (b) 7. (c) 8. (b) 9. (c) 10. (c)
11. (a) 12. (c) 13. (a) 14. (b) 15. (c)
16. (a) 17. (c) 18. (a) 19. (d) 20. (a)
21. (b) 22. (d) 23. (a) 24. (c) 25 (a)
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