Biology MCQs

Biology Multiple Choice Questions (MCQs) with answers Page-1. Following are the basic Biology Quiz (equivalent to O-Level) for beginners. Find answers to the Questions at the bottom of the page.

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10

  1. Severe deficiency of Vitamin-D results in __________.
    1. scurvy
    2. rickets
    3. night blindness
    4. osteomalacia

  2. People living in high altitudes (like mountains) usually have a _________.
    1. smaller number of Red Blood Cells
    2. larger number of Red Blood Cells
    3. smaller number of White Blood Cells
    4. larger number of White Blood Cells

  3. The average adult has a blood volume of about __________ liters.
    1. 5
    2. 5.5
    3. 6
    4. 6.5

  4. The average internal temperature of human body is __________.
    1. 35 oC
    2. 36 oC
    3. 37 oC
    4. 38 oC

  5. Vitamin __________ is needed for the formation of a light-sensitive pigment in the retina.
    1. A
    2. C
    3. D
    4. B complex

  6. About __________ of the body weight of a mammal is water.
    1. 60%
    2. 65%
    3. 70%
    4. 75%

  7. On wound __________ fight foreign particles, like bacteria.
    1. White Blood cells
    2. Red Blood Cells
    3. Platelets
    4. Plasma

  8. Blood is carried towards the heart by __________.
    1. Arteries
    2. Capillaries
    3. Veins
    4. none of these

  9. __________ is essential for the formation of haemoglobin.
    1. Calcium
    2. Iron
    3. Water
    4. Carbohydrates

  10. ___________ are needed as a source of energy for the vital activities of the body.
    1. Calcium
    2. Iron
    3. Water
    4. Carbohydrates

ANSWERS: BIOLOGY MCQS

  1. B
  2. B
  3. A
  4. C
  5. A
  6. C
  7. A
  8. C
  9. B
  10. D

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