In the Absence of Oxygen,pyruvate Is Converted To

question 43

Multiple Choice

In the absence of oxygen,pyruvate is converted to:

• A)acetyl CoA.
• B)phosphoenolpyruvate.
• C)lactic acid.
• D)citrate.

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Definitions:

Electron Transport Chain

A series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, coupled with the transfer of protons across a membrane, generating ATP.

Proton Gradient

A gradient of hydrogen ions (protons) across a membrane, used as a source of energy for processes like ATP synthesis.

Potential Energy

The energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

Citric Acid Cycle

A sequence of biochemical processes that aerobic life forms use to liberate energy stored by oxidizing acetyl-CoA, obtained from carbs, fats, and proteins.