Biology Practice Question and Answer

Q:

Deficiency of which of the following vitamins causes excessive bleeding from wounds?

1846 0

  • 1
    Vitamin D
    Correct
    Wrong
  • 2
    Vitamin E
    Correct
    Wrong
  • 3
    Vitamin A
    Correct
    Wrong
  • 4
    Vitamin K
    Correct
    Wrong
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Answer : 4. "Vitamin K"
Explanation :

1. Vitamin K deficiency causes excessive bleeding from wounds.

2. If there is deficiency of Vitamin K in your body then you can easily get injury marks on your body or skin.

Q:

Which of the following diseases is usually spread with milk?

1842 0

  • 1
    Plague
    Correct
    Wrong
  • 2
    Polio
    Correct
    Wrong
  • 3
    Atanjwar
    Correct
    Wrong
  • 4
    Rohini
    Correct
    Wrong
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Answer : 3. "Atanjwar"

Q:

The unit of genes is?

1835 0

  • 1
    gene
    Correct
    Wrong
  • 2
    cell
    Correct
    Wrong
  • 3
    Fauna
    Correct
    Wrong
  • 4
    DNA
    Correct
    Wrong
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Answer : 2. "cell"

Q:

Water from soil enters into root hairs by

1828 0

  • 1
    Capillary Pressure
    Correct
    Wrong
  • 2
    Osmotic Pressure
    Correct
    Wrong
  • 3
    Root Pressure
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "Capillary Pressure"

Q:

Which of the following viruses causes Smallpox? 

1823 0

  • 1
    Rhino Virus
    Correct
    Wrong
  • 2
    Varicella Virus
    Correct
    Wrong
  • 3
    Enter Virus
    Correct
    Wrong
  • 4
    Variola Virus
    Correct
    Wrong
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Answer : 4. "Variola Virus "

Q:

BCG vaccine is given?

1823 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:

Who explained the structure and reproductive system of algae in 1935?

1821 0

  • 1
    MOP Iyengar 
    Correct
    Wrong
  • 2
    FE Fritsch
    Correct
    Wrong
  • 3
    William Henry
    Correct
    Wrong
  • 4
    Carolus Linnaeus
    Correct
    Wrong
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Answer : 2. "FE Fritsch"
Explanation :

1. Explain the structure and reproductive system of algae in 1935. It was from F.  E. Fritch.

2. The study of algae is known as phycology. It is also known as Algology.

3. Algae are largely aquatic (both fresh and sea water) organisms, which are chlorophyll bearing, simple, thalloid and autotrophic in nature.

Q:

Light blue blood in arthropod animals can be due to

1817 0

  • 1
    Hemocyanin
    Correct
    Wrong
  • 2
    hemoglobin
    Correct
    Wrong
  • 3
    hemin
    Correct
    Wrong
  • 4
    Porphyrins
    Correct
    Wrong
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Answer : 1. "Hemocyanin"

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