Biology Questions Practice Question and Answer

Q:

What is the unit of Nervous system?

1541 0

  • 1
    Brain
    Correct
    Wrong
  • 2
    Spinal Cord
    Correct
    Wrong
  • 3
    Nerves
    Correct
    Wrong
  • 4
    Neuron
    Correct
    Wrong
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Answer : 4. "Neuron "

Q:

Which of the following parts of the eye has been 3D printed by scientists in 2018?

1474 0

  • 1
    Iris
    Correct
    Wrong
  • 2
    lens
    Correct
    Wrong
  • 3
    Retina
    Correct
    Wrong
  • 4
    cornea
    Correct
    Wrong
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Answer : 4. "cornea"

Q:

Which disease is caused by cadmium pollution?

4409 0

  • 1
    Minamata
    Correct
    Wrong
  • 2
    Black foot disease
    Correct
    Wrong
  • 3
    Dyslexia
    Correct
    Wrong
  • 4
    Itai-itai
    Correct
    Wrong
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Answer : 4. "Itai-itai"

Q:

The focal length of a plane mirror is ______.

1330 0

  • 1
    positive
    Correct
    Wrong
  • 2
    negative
    Correct
    Wrong
  • 3
    infinity
    Correct
    Wrong
  • 4
    zero
    Correct
    Wrong
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Answer : 3. "infinity"

Q:

Which category of compound is the most concentrated energy source?

1228 0

  • 1
    Vitamins
    Correct
    Wrong
  • 2
    Starch
    Correct
    Wrong
  • 3
    Proteins
    Correct
    Wrong
  • 4
    Fats
    Correct
    Wrong
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Answer : 4. "Fats"

Q:

Pathogenic bacteria secrete 

1543 1

  • 1
    Hormones
    Correct
    Wrong
  • 2
    Interferons
    Correct
    Wrong
  • 3
    Antigens
    Correct
    Wrong
  • 4
    Antibodies
    Correct
    Wrong
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Answer : 3. "Antigens "

Q:

Which of the following is true?

1344 0

  • 1
    DNA is the genetic material in all the viruses
    Correct
    Wrong
  • 2
    RNA is the genetic material in all the viruses
    Correct
    Wrong
  • 3
    DNA is the genetic material in most of the organism
    Correct
    Wrong
  • 4
    RNA is the genetic material in most viruses and bacteria
    Correct
    Wrong
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Answer : 3. "DNA is the genetic material in most of the organism "

Q:

A specific function of light energy in the process of photosynthesis is to ______. 

2071 2

  • 1
    activate chlorophyll
    Correct
    Wrong
  • 2
    formation of oxygen
    Correct
    Wrong
  • 3
    absorb water
    Correct
    Wrong
  • 4
    reduce carbon- di-oxide
    Correct
    Wrong
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Answer : 1. "activate chlorophyll "

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