EASY
Earn 100

Statement I: Specialised cells in BGA that perform nitrogen fixation are called heterocysts.

Statement II: All BGA that can fix atmospheric nitrogen have heterocysts.

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Important Questions on Biological Classification

EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
The guts of cow and buffalo possess:
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Pick up the wrong statement.
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Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
The true nucleus is absent in:
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Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
A farmer has applied chemical fertilisers in the crop field for many successive seasons, the crop growth was poor as soil lost its fertility. Suggest the suitable microorganism that replenishes the fertility of soil in this field.
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
In a mixed culture of slow and fast growing bacteria, penicillin will
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Cell wall is absent in:
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Anoxygenic photosynthesis is characteristic of:
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Which of the following is a correct statement?
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the:
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Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
DNA replication in bacteria occurs
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Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Which of the following is incorrect about Cynobacteria?
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Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
A bacterial colony is produced from
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Methanogens belong to:
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Which of the following are found in extreme saline conditions?
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Ruminant animals can digest cellulose in their food, whereas human beings are unable to do so. This is because.
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Archaebacteria differs from eubacteria in:
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Which one of the following statements is wrong?
EASY
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
Identify combination of incorrect statements related to Cyanobacteria
I. Cyanobacteria are referred to as blue-green algae.
II. They perform oxygenic photosynthesis in chloroplasts.
II. The red-colour of red-sea is due to the presence of a cyanobacterial species Trichodesmium erythraeum.
IV. All the cyanobacterial species can fix atmospheric N2 in specialised cells called heterocysts.
MEDIUM
Biology>Diversity in the Living World>Biological Classification>Kingdom Monera
The primary producers of the deep-sea hydrothermal vent ecosystem are