Question

Nitrogen fixation by organisms requires conditions that are:

Options

• aerobic

• anaerobic

• saturated with sunlight

• free of water

Answer 1

anaerobic

Explanation:

Nitrogenase is an enzyme that catalyses the conversion of atmospheric nitrogen to ammonia, which is the first stable product of nitrogen fixation. Because this enzyme is extremely sensitive to molecular oxygen, it requires anaerobic conditions. As a result, anaerobic conditions are required for organisms to fix nitrogen.