Biology Practice Question and Answer

Q:

Which is a specialised excretory cell found in Platyhelminthes that acts like a kidney, removing waste material through filtration?

380 0

  • 1
    Fat cell
    Correct
    Wrong
  • 2
    Flame cell
    Correct
    Wrong
  • 3
    Stem cell
    Correct
    Wrong
  • 4
    Sponge cell
    Correct
    Wrong
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Answer : 2. "Flame cell"
Explanation :

1. Which is a special excretory cell found in Platyhelminthes which acts like a kidney, and the flame cell does the work of removing waste material through filtration?

Q:

Nyctalopia, more commonly known as Night Blindness, is caused by the deficiency of which nutrient?

379 0

  • 1
    Vitamin C
    Correct
    Wrong
  • 2
    Magnesium
    Correct
    Wrong
  • 3
    Potassium
    Correct
    Wrong
  • 4
    Vitamin A
    Correct
    Wrong
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Answer : 4. "Vitamin A"
Explanation :

1. Nyctalopia (night blindness) is caused by deficiency of Vitamin A.

2. Foods rich in Vitamin A are carrots, spinach, sweet potatoes, lettuce, etc.

3. Vitamin A deficiency can cause damage to rod cells, which reduces the ability to see in low light.

Q:

Where does the mouth lead into the alimentary canal?

378 0

  • 1
    Pharynx
    Correct
    Wrong
  • 2
    Larynx
    Correct
    Wrong
  • 3
    Oral cavity
    Correct
    Wrong
  • 4
    Tongue
    Correct
    Wrong
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Answer : 3. "Oral cavity"

Q:

Which part of the digestive system receives secretions from the liver and the pancreas?

376 0

  • 1
    Large intestines
    Correct
    Wrong
  • 2
    Stomach
    Correct
    Wrong
  • 3
    Gall bladder
    Correct
    Wrong
  • 4
    Small intestines
    Correct
    Wrong
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Answer : 4. "Small intestines"
Explanation :

The small intestine is the part of the digestive system that receives secretions from the liver and pancreas.

Q:

Insulin facilitates glucose uptake in

365 0

  • 1
    Kidney tubule
    Correct
    Wrong
  • 2
    Brain
    Correct
    Wrong
  • 3
    Red blood cells
    Correct
    Wrong
  • 4
    Skeleton muscle
    Correct
    Wrong
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Answer : 4. "Skeleton muscle"

Q:

The human shoulder joint is an example of a ______ joint.

362 0

  • 1
    fixed
    Correct
    Wrong
  • 2
    pivotal
    Correct
    Wrong
  • 3
    hinge
    Correct
    Wrong
  • 4
    ball and socket
    Correct
    Wrong
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Answer : 4. "ball and socket"
Explanation :

1. The human shoulder joint is an example of a ball and socket joint.

2. In this type of joint, a rounded end of one bone fits into a flat or cup-shaped recess of the other bone.

Q:

Which is the smallest bone in the human body?

361 0

  • 1
    Stapes
    Correct
    Wrong
  • 2
    Phalanges
    Correct
    Wrong
  • 3
    Humerus
    Correct
    Wrong
  • 4
    Pelvis
    Correct
    Wrong
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Answer : 1. "Stapes"
Explanation :

1. The smallest bone in the human body is the stapes.

2. This bone is located in the middle ear.

3. The length of the stapes is about 3 millimeters.

Q:

______ is caused when a child’s growing bones fail to develop due to a lack of vitamin D.

361 0

  • 1
    Night blindness
    Correct
    Wrong
  • 2
    Rickets
    Correct
    Wrong
  • 3
    Goitre
    Correct
    Wrong
  • 4
    Scurvy
    Correct
    Wrong
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Answer : 2. "Rickets"
Explanation :

1. Rickets occurs when a child's growing bones do not develop due to vitamin D deficiency.

2. Vitamin D is an essential nutrient that helps in the absorption of calcium and phosphate.

3. Symptoms of rickets include.

- Pain and tenderness in the bones of the feet and hands

- curvature in the bones of the legs

- pain in shoulders and hips

- muscle weakness

- delayed development

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