2. Sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.

Rhizobium is present inside the nodule of bean if we observed with the help of hand lens.

Explanation:

Rhizobium is a type of bacteria which is present inside the nodules of various leguminous plants. The main function of this bacteria is to convert the atmospheric nitrogen into nitrates form for the plant. These bacteria is also called nitrogen fixing bacteria. They make a symbiotic association with the plants. The plant provides food to the bacteria while bacteria provides nutrients so both get benefits from each other.