Biology Practice Question and Answer

Q:

What is the weight of human heart?

1004 0

  • 1
    100 gms
    Correct
    Wrong
  • 2
    1000 gms
    Correct
    Wrong
  • 3
    800 gms
    Correct
    Wrong
  • 4
    300 gms
    Correct
    Wrong
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Answer : 4. "300 gms"

Q:

Which disease is caused by the deficiency of protein? 

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  • 1
    Hypokalemia
    Correct
    Wrong
  • 2
    Dermatosis
    Correct
    Wrong
  • 3
    Goitre
    Correct
    Wrong
  • 4
    Kwashiorkar
    Correct
    Wrong
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Answer : 4. "Kwashiorkar"
Explanation :

(D) Kwashiorkor

Kwashiorkor is a disease caused by the deficiency of protein in the diet. It is a form of malnutrition that particularly affects children in regions where there is a lack of access to an adequate protein source. Symptoms of kwashiorkor include edema (swelling), stunted growth, and changes in skin and hair. The other options listed—Hypokalemia, Dermatosis, and Goitre—are not specifically caused by a deficiency of protein. Hypokalemia is a low potassium level, dermatosis refers to various skin disorders, and goitre is often associated with iodine deficiency leading to thyroid gland enlargement.

Q:

The function of hemoglobin in the body is-

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  • 1
    Controlling the amount of blood
    Correct
    Wrong
  • 2
    Transporting Oxygen
    Correct
    Wrong
  • 3
    Operating the blood
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "Transporting Oxygen"

Q:

An adult human body has _____ bones.

991 0

  • 1
    312
    Correct
    Wrong
  • 2
    206
    Correct
    Wrong
  • 3
    208
    Correct
    Wrong
  • 4
    300
    Correct
    Wrong
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Answer : 2. "206"

Q:

The organ affected by malaria is –

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  • 1
    Kidney
    Correct
    Wrong
  • 2
    Spleen
    Correct
    Wrong
  • 3
    Heart
    Correct
    Wrong
  • 4
    Lungs
    Correct
    Wrong
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Answer : 2. "Spleen"
Explanation :

(B) Spleen

The organ primarily affected by malaria is the spleen. Malaria is a parasitic infection caused by Plasmodium parasites that are transmitted through the bites of infected mosquitoes. The parasites multiply in the liver and then infect red blood cells, leading to symptoms such as fever, chills, and an enlarged spleen. The spleen plays a crucial role in the immune response against malaria, but the infection can cause it to enlarge as it filters out infected red blood cells from the circulation. If left untreated, severe cases of malaria can lead to complications, including damage to the spleen and other organs.

Q:

BCG vaccine is given?

972 1

  • 1
    To protect polio
    Correct
    Wrong
  • 2
    To prevent tuberculosis
    Correct
    Wrong
  • 3
    for both
    Correct
    Wrong
  • 4
    To prevent malaria
    Correct
    Wrong
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Answer : 2. "To prevent tuberculosis"

Q:

Which of the following pair of diseases is caused by virus?

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  • 1
    Rabies, Mumps
    Correct
    Wrong
  • 2
    AIDS, Syphilis
    Correct
    Wrong
  • 3
    Typhoid, Tetanus
    Correct
    Wrong
  • 4
    Cholera, Tuberculosis
    Correct
    Wrong
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Answer : 1. "Rabies, Mumps"

Q:

The main function of epithelial tissue is?

969 0

  • 1
    Convection
    Correct
    Wrong
  • 2
    generation
    Correct
    Wrong
  • 3
    Defense
    Correct
    Wrong
  • 4
    emissions
    Correct
    Wrong
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Answer : 3. "Defense"
Explanation :

The main function of epithelial tissue is:

(C) Defense

Explanation:

Epithelial tissue serves as a protective covering for the body and its organs. It acts as a barrier that helps prevent the entry of pathogens and other harmful substances. Epithelial cells are tightly packed and form continuous sheets, providing a protective layer on the body surfaces, both internal and external. This protective function is essential for defending the body against infections and maintaining its integrity. Therefore, option (C) Defense is the correct answer.

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