Question Detail

BIO 101 BIO 101 Past Questions Objective Question

Question

In Kreb's cycle, a six carbon compound is formed by the combination of Acetyl CoA and
Options
A citric acid
B malic acid
C oxaloacetic acid
Correct Answer
D succinic acid
Correct Answer

Option C is the correct answer.

Detailed Explanation

The Krebs cycle begins when the two-carbon acetyl group from acetyl CoA combines with the four-carbon oxaloacetic acid (OAA) to form the six-carbon molecule citric acid (citrate).

Hint

What four-carbon molecule joins with acetyl-CoA at the start of the cycle?

Question Info