Question Detail

BIO 101 BIO 101 Past Questions Objective Question

Question

The first compound to be generated in Krebs cycle is
Options
A Oxaloacetate
B Citrate
Correct Answer
C Aconitate
D Malate
Correct Answer

Option B is the correct answer.

Detailed Explanation

The Krebs cycle (Citric Acid Cycle) begins when acetyl-CoA (2 carbons) combines with oxaloacetate (4 carbons) to form citrate (6 carbons). Citrate is therefore the first compound generated in the cycle.

Hint

What is formed when acetyl-CoA joins with oxaloacetate at the start of the cycle?

Question Info