In the mitochondrial matrix, a two-carbon acetyl group combines with a four-carbon acceptor. What is the first stable product of this cycle?
Q1. In the mitochondrial matrix, a two-carbon acetyl group combines with a four-carbon acceptor. What is the first stable product of this cycle?
Answer: Citrate
Explanation: Citrate is the first 6-carbon product formed from oxaloacetate and acetyl-CoA. Pyruvate is wrong because it must be decarboxylated first.