Where Do the Protons and Electrons Come from That Are

question 44

Multiple Choice

Where do the protons and electrons come from that are used in the electron transport chain?

• A) ATP
• B) NADH
• C) FADH₂
• D) ADP
• E) NADH and FADH₂

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Definitions:

Constant Illumination

A condition where an environment is continuously exposed to light, without periods of darkness.

Melatonin

A hormone produced by the pineal gland that regulates sleep-wake cycles.

Sleeping Difficulty

Trouble initiating or maintaining sleep.

Muscular Development

The process of growth and increase in the size or strength of muscle tissues, often through exercise and nutrition.