Question

Nodules with nitrogen fixing bacteria is present in -
a. maize b. cotton c. gram d. rice

Answer 1

Grams (leguminous plants)

Answer 2

Answer:

Nodules with nitrogen fixing bacteria is present in c) gram.

Explanation:

Nitrogen is an essential element for the growth of plants. It is present in the soil in the form of nitrates mainly. Many plants cannot assimilate nitrogen directly but need some other factors which can provide nitrogen to plants.

In leguminous plants, there are Rhizobium bacteria found in the root nodules which convert the nitrogen minerals to nitrogen and provide it to plants. Here out of maize, cotton, gram and rice, gram is the only leguminous plant.