Biology MCQs

31. Myopia may occur because __
[A] the eyeball is too short from front to back
[B] the eyeball is elongated from front to back
[C] the muscles that control the lens may lose power as people grow older
[D] None of these

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32. The least distance of distinct vision for a young adult with normal vision is __
[A] 25 m
[B] 20 m
[C] 25 cm
[D] 20 cm

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33. What is the diameter of thick filaments?
[A] 10nm
[B] 16mm
[C] 12nm
[D] 16nm

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34. B-cells and T-cells are two types of cells, which of the following are involved?
[A] Innate Immunity
[B] Active immunity
[C] Passive immunity
[D] Acquired immunity

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35. Which of the following is a layer of Bowman’s capsule?
[A] Outer Parietal layer
[B] Middle Basement membrane
[C] Inner Visceral Layer
[D] All of the above

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36. The bioethanol is subjected to rectification to remove?
[A] Sugar
[B] Enzymes
[C] Yeast
[D] Impurities

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37. Which of the following makes the skin layer impervious to water?

[A] Melanin
[B] Collagen
[C] Keratin
[D] Chitin

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38. The vitamin which is very labile and easily destroyed during cooking as well as storage is vitamin ____:
[A] Vitamin D
[B] Vitamin C
[C] Vitamin K
[D] Vitamin B6

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39. In which of the following parts of the human digestive system is the digestion of food completed?
[A] Small intestine
[B] Large intestine
[C] Mouth
[D] Stomach

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40. ____ is the branch of zoology concerned with the study of amphibians:
[A] Herpetology
[B] Ethology
[C] Mammology
[D] Morphology

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