Biology Practice Question and Answer

Q:

Which disease is caused by cadmium pollution?

4047 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 ______.

1156 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?

1045 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 

1340 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?

1163 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 ______. 

1739 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 "

Q:

Sponges belongs to the phylum

779 0

  • 1
    Protozoa
    Correct
    Wrong
  • 2
    Annelida
    Correct
    Wrong
  • 3
    Porifera
    Correct
    Wrong
  • 4
    Cnideria
    Correct
    Wrong
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Answer : 3. "Porifera "

Q:

Bacteria was discovered by

1009 0

  • 1
    Antony van Leeuwenhoek
    Correct
    Wrong
  • 2
    Robert Brown
    Correct
    Wrong
  • 3
    Hugo de Vries
    Correct
    Wrong
  • 4
    Belarus
    Correct
    Wrong
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Answer : 1. "Antony van Leeuwenhoek "

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