Biology Practice Question and Answer

Q:

The upper part of the respiratory tract is provided with small hair-like structures called ______.

471 0

  • 1
    bronchi
    Correct
    Wrong
  • 2
    cilia
    Correct
    Wrong
  • 3
    villi
    Correct
    Wrong
  • 4
    alveoli
    Correct
    Wrong
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Answer : 2. "cilia"
Explanation :

Hairlike structures called cilia line the mucous membrane and move the particles trapped in the mucus out of the nose. Inhaled air is moistened, warmed, and cleansed by the tissue that lines the nasal cavity.


Q:

Which of the following is not a major component of the food?

468 0

  • 1
    Carbohydrates
    Correct
    Wrong
  • 2
    proteins
    Correct
    Wrong
  • 3
    Vitamins
    Correct
    Wrong
  • 4
    Fats
    Correct
    Wrong
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Answer : 3. "Vitamins"

Q:

The retina in an outgrowth of the______

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  • 1
    Mesencephalon
    Correct
    Wrong
  • 2
    Diencephalon
    Correct
    Wrong
  • 3
    Telencephalon
    Correct
    Wrong
  • 4
    Pons
    Correct
    Wrong
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Answer : 2. "Diencephalon"

Q:

Which organ does detoxification and produces chemicals needed for digestion?

461 0

  • 1
    Thyroid gland
    Correct
    Wrong
  • 2
    Liver
    Correct
    Wrong
  • 3
    Salivary glands
    Correct
    Wrong
  • 4
    Pancreas
    Correct
    Wrong
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Answer : 2. "Liver"

Q:

Starch and sugar in our food are forms of _____.

458 0

  • 1
    Proteins
    Correct
    Wrong
  • 2
    fats
    Correct
    Wrong
  • 3
    vitamins
    Correct
    Wrong
  • 4
    carbohydrates
    Correct
    Wrong
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Answer : 4. "carbohydrates"
Explanation :

1. Starch and sugar found in our food are forms of carbohydrates. Carbohydrates are an important part of our diet. They provide energy to the body and are essential for other body functions.

2. Starch is a complex carbohydrate found in plants. It is found in wheat, rice, potatoes, and other grains. Starch is used to thicken food, make sugar, and make other foods.

Q:

The tissue in man where no cell division occur after birth is

458 0

  • 1
    Skeletal
    Correct
    Wrong
  • 2
    Nerves
    Correct
    Wrong
  • 3
    Connective
    Correct
    Wrong
  • 4
    Germinal
    Correct
    Wrong
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Answer : 2. "Nerves "

Q:

Sponges belong to phylum ______ of the animal kingdom.

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  • 1
    Echinodermata
    Correct
    Wrong
  • 2
    Porifera
    Correct
    Wrong
  • 3
    Aschelminthes
    Correct
    Wrong
  • 4
    Mollusca
    Correct
    Wrong
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Answer : 2. "Porifera"
Explanation :

1. Sponge belongs to Porifera phylum of the animal kingdom.

2. These are primitive multicellular animals. The study of sponges is known as para zoology.

3. Sponges are mostly irregular in shape and have radial symmetry.

4. The body of a sponge has two layers-

- Epidermis: This is the outer layer that helps move water in and out.

- Mesohyl: This is the middle layer which contains the cells of the sponge.

Q:

Deficiency of which of these vitamin causes anaemia in humans?

446 0

  • 1
    Vitamin D
    Correct
    Wrong
  • 2
    Vitamin B
    Correct
    Wrong
  • 3
    Vitamin A
    Correct
    Wrong
  • 4
    Vitamin B12
    Correct
    Wrong
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Answer : 4. "Vitamin B12"
Explanation :

Symptoms of vitamin B12 deficiency or folate deficiency anemia develop slowly and are similar to those of other types of anemia, such as fatigue, weakness, and pale skin. Vitamin B12 deficiency can also cause nerve damage, the main symptoms of which include tingling, loss of touch, and muscle weakness. Confusion can arise when Vitamin B12 becomes too low. Vitamin B12 deficiency anemia in the elderly can be mistaken for dementia. This happens because of similar symptoms.

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