What is nitrogen fixation? How do leguminous plants help in nitrogen fixation?

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Solution

The process in which the free nitrogen available in the atmosphere is converted into its compounds is called as nitrogen fixation. The root nodules of the leguminous plants contain nitrogen fixing bacteria called rhizobium. The rhizobium fixes the atmospheric nitrogen into biologically absorbable form, which is then taken up by the plants and stored in plant tissues as plant proteins.

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Question 7
Choose the correct statement with respect to nitrogen fixation:

Statement 1: Nitrogen fixation process is involved in converting nitrogen gas into nitrogenous compounds.

Statement 2: Root nodules of the non-leguminous plants help in the process of nitrogen fixation.

Which of the following is involved in fixation of nitrogen in leguminous plants?

The first stable product of fixation of atmospheric nitrogen in leguminous plants is:

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