Multiple Choice
What first happens to the carbon atoms that enter the Krebs cycle as acetyl CoA?
A) They are reduced to form carbon dioxide.
B) They are activated with a phosphate from ATP.
C) They combine with pyruvate to form a four-carbon sugar.
D) Two acetyl CoA molecules join together to form a six-carbon sugar.
E) They combine with a four-carbon sugar to form a six-carbon sugar.
Correct Answer:

Verified
Correct Answer:
Verified
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