Why Is Nitrogen Fixation an Essential Process

question 24

Multiple Choice

Why is nitrogen fixation an essential process?

• A) Nitrogen fixation can only be done by certain prokaryotes.
• B) Fixed nitrogen is often the limiting factor in plant growth.
• C) Nitrogen fixation is very expensive in terms of metabolic energy.
• D) Nitrogen fixers are sometimes symbiotic with legumes.
• E) Nitrogen-fixing capacity can be genetically engineered.

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Definitions:

Sensory Receptors

Cells or organs located throughout the body that respond to specific stimuli from the external or internal environment, enabling the senses of sight, hearing, touch, taste, and smell.

Light

The natural agent that stimulates sight and makes things visible, consisting of electromagnetic radiation that is visible to the human eye.

Vibrations

Rapid oscillations of particles about an equilibrium position, which can occur in physical objects, air molecules, or other mediums.

Sounds

Vibrations that travel through the air or another medium and can be heard when they reach a person’s or animal's ear.