Biology Practice Question and Answer

Q:

In human beings, the small intestine is coiled and is about ______ metres long. 

442 0

  • 1
    1 to 1.5
    Correct
    Wrong
  • 2
    3 to 3.5
    Correct
    Wrong
  • 3
    2 to 2.5
    Correct
    Wrong
  • 4
    7 to 7.5
    Correct
    Wrong
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Answer : 4. "7 to 7.5"

Q:

What does our digestive system consist of?

436 0

  • 1
    Alimentary canal and associated glands
    Correct
    Wrong
  • 2
    Digestive glands only
    Correct
    Wrong
  • 3
    Digestive glands only
    Correct
    Wrong
  • 4
    Mucous glands
    Correct
    Wrong
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Answer : 1. "Alimentary canal and associated glands"

Q:

Which of the following is true about

Atrial Natriuretic Factor :

1) Peptide hormone 2) Increases blood pressure 3) Reduces blood pressure 4) Vaso constrictor 5) Cause vasodialation

436 0

  • 1
    1, 2 and 4 are true
    Correct
    Wrong
  • 2
    1,3 and 5 are true
    Correct
    Wrong
  • 3
    2 and 4 are true
    Correct
    Wrong
  • 4
    5 only is true
    Correct
    Wrong
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Answer : 2. "1,3 and 5 are true "

Q:

Which of the following is incorrect regarding the shapes of the three portions of the small intestine?

435 0

  • 1
    Duodenum-C shape
    Correct
    Wrong
  • 2
    Duodenum-J shape
    Correct
    Wrong
  • 3
    Ileum-highly coiled
    Correct
    Wrong
  • 4
    jejunum-long coiled
    Correct
    Wrong
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Answer : 2. "Duodenum-J shape"

Q:

How many teeth in man come out twice?

434 0

  • 1
    4
    Correct
    Wrong
  • 2
    12
    Correct
    Wrong
  • 3
    20
    Correct
    Wrong
  • 4
    28
    Correct
    Wrong
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Answer : 3. "20"

Q:

Which one of the following is the process involved in photosynthesis? 

434 0

  • 1
    Food is oxidized to release carbon dioxide and water
    Correct
    Wrong
  • 2
    Oxygen is taken, and carbon dioxide and water vapor are given out
    Correct
    Wrong
  • 3
    Potential energy is released to form free energy
    Correct
    Wrong
  • 4
    Free energy is converted into potential energy and stored
    Correct
    Wrong
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Answer : 4. "Free energy is converted into potential energy and stored "

Q:

The skull bones are immovable because of the presence of highly tensile:

433 0

  • 1
    Aerolar tissue
    Correct
    Wrong
  • 2
    Tendon
    Correct
    Wrong
  • 3
    Cartilage
    Correct
    Wrong
  • 4
    White fibrous tissue
    Correct
    Wrong
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Answer : 4. "White fibrous tissue"

Q:

Which of the following body parts is directly affected in the disease called rickets?

431 0

  • 1
    Eyes
    Correct
    Wrong
  • 2
    Tongue
    Correct
    Wrong
  • 3
    Spleen
    Correct
    Wrong
  • 4
    Bones
    Correct
    Wrong
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Answer : 4. "Bones"
Explanation :

1. Rickets is a bone disease caused by vitamin D deficiency.

2. Due to rickets, the absorption of calcium and phosphorus in the bones decreases.

3. The solution to protect exclusively breastfed babies from this disease is Vitamin D supplements.

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