Question

Which statement best describes the process that takes place in these nodules?

Answer 1

Answer: B. Bacteria in the plant converts nitrogen from the soil into molecules  that plants can use.

Explanation:

Root nodules are present in roots of plants which are in symbiotic relation with the nitrogen-fixing bacteria.

Nitrogen fixing bacteria fix nitrogen from the atmosphere and take up from the soil and convert into a form which is usable by the plants. These play an important role in nitrogen cycle.

Answer 2

The answer is B. Bacteria in the plant nodules convert nitrogen from the soil into molecules the plants can use.