The Enzyme That Catalyzes the Fixation of Nitrogen

question 43

Multiple Choice

The enzyme that catalyzes the fixation of nitrogen

• A) requires a lot of oxygen.
• B) requires a powerful oxidizing agent.
• C) requires only a plentiful supply of ATP.
• D) requires both ATP and a powerful reducing agent.
• E) is active in free-living rhizobia.

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Definitions:

Free Nerve Endings

Sensory receptors located near the surface of the skin that can detect pain, temperature, and touch.

Hair Cells

Sensory cells located in the inner ear that convert sound vibrations into electrical signals that can be interpreted by the brain.

Meissner Corpuscle

Touch receptors located in the dermal papillae of the skin, sensitive to light touch and texture.

Pacinian Corpuscle

A type of mechanoreceptor found in the skin and viscera responsible for sensitivity to vibration and pressure.