Biology Practice Question and Answer

Q:

Kidney stones are composed of ______. 

593 0

  • 1
    Magnesium Nitrate
    Correct
    Wrong
  • 2
    Calcium Bicarbonate
    Correct
    Wrong
  • 3
    Calcium Oxalate
    Correct
    Wrong
  • 4
    Sodium Chloride
    Correct
    Wrong
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Answer : 3. "Calcium Oxalate"

Q:

Which of these diseases is contagious?

587 0

  • 1
    Malaria
    Correct
    Wrong
  • 2
    Cancer
    Correct
    Wrong
  • 3
    Hypertension
    Correct
    Wrong
  • 4
    Diabetes
    Correct
    Wrong
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Answer : 1. "Malaria"

Q:

Which of the following is not correct regarding oesophagus?

586 0

  • 1
    Thick
    Correct
    Wrong
  • 2
    Long tube
    Correct
    Wrong
  • 3
    Passes through neck
    Correct
    Wrong
  • 4
    Extends Posteriorly
    Correct
    Wrong
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Answer : 1. "Thick "

Q:

Which of the following is a root ? 

584 0

  • 1
    Potato
    Correct
    Wrong
  • 2
    Onion
    Correct
    Wrong
  • 3
    Carrot
    Correct
    Wrong
  • 4
    ginger
    Correct
    Wrong
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Answer : 3. "Carrot "
Explanation :

Yams, beets, parsnips, turnips, rutabagas, carrots, yuca, kohlrabi, onions, garlic, celery root (or celeriac), horseradish, daikon, turmeric, jicama, Jerusalem artichokes, radishes, and ginger are all considered roots. Because root vegetables grow underground, they absorb a great amount of nutrients from the soil.

Q:

To what depth are photosynthetic marine plants found?

579 0

  • 1
    20-30 m
    Correct
    Wrong
  • 2
    180-200 m
    Correct
    Wrong
  • 3
    980-1000 m
    Correct
    Wrong
  • 4
    1800-2000 m
    Correct
    Wrong
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Answer : 1. "20-30 m"

Q:

Muscles get tired when there is shortfall of ___________.

578 0

  • 1
    Lactic acid
    Correct
    Wrong
  • 2
    Na+ ions
    Correct
    Wrong
  • 3
    ATP
    Correct
    Wrong
  • 4
    Sulphates
    Correct
    Wrong
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Answer : 3. "ATP"

Q:

Which of these animals have external and internal skeleton?

568 0

  • 1
    Cockroach
    Correct
    Wrong
  • 2
    Earthworm
    Correct
    Wrong
  • 3
    Frogs
    Correct
    Wrong
  • 4
    Snake
    Correct
    Wrong
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Answer : 4. "Snake"

Q:

The size of the pupil of the eye is controlled by the ______.

565 0

  • 1
    blind spot
    Correct
    Wrong
  • 2
    retina
    Correct
    Wrong
  • 3
    cornea
    Correct
    Wrong
  • 4
    iris
    Correct
    Wrong
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Answer : 4. "iris"
Explanation :

1. The iris controls the amount of light entering the eye.

2. Iris is the colored part of the eye, which provides pigment to the eyes.

3. It is attached to the ciliary muscle, which contracts and expands to accommodate the required amount of light.

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