Question

question 1 (5 points)
listen
the primary role of coenzyme a in aerobic respiration is to
a) activate acetyl coa and other molecules in the citric acid cycle.
b) speed up the citric acid cycle.
c) transport electrons to fad.
d) kick off the transport electron cascade.

Explanation:

To solve this, we analyze each option:

• Option A: Coenzyme A (CoA) is involved in activating acetyl groups (like acetyl - CoA) and other molecules to enter the citric acid cycle. This is a key role in aerobic respiration.
• Option B: Enzymes (not CoA) are responsible for speeding up the citric acid cycle as catalysts. CoA doesn't act as a catalyst to speed up the cycle.
• Option C: Electron carriers like NADH and FADH₂ (not CoA) transport electrons. CoA has no role in transporting electrons to FAD.
• Option D: The electron transport chain (ETC) is kicked off by electron carriers (NADH, FADH₂) donating electrons, not CoA.

Answer:

A) activate acetyl CoA and other molecules in the citric acid cycle.