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Question

The bacteria present in root nodules of leguminous plants that is responsible for atmospheric nitrogen fixation is

A
Rhizobium
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B
Blue-green algae.
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C
Nitrifying bacteria.
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D
Paramoecium
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Solution

The correct option is A Rhizobium
Rhizobium is the symbiotic bacteria which lives in the root nodules of leguminous plants. It converts atmospheric nitrogen into ammonium with the help of nitrogenase enzyme. The ammonium is later exported into the plant in the form of glutamine and asparagine. This property of nitrogen fixation helps in increasing the yield of the crop. The correct solution is option A.

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