Answer:
The correct answer is break down of pyruvate
Step-by-step explanation:
Krebs cycle is one of the most significant process of aerobic respiration.During krebs cycle pyruvate is broken down to acetyl CoA which interacts with oxaloacetate to form the first metabolite of Krebs cycle known as citrate which contain 3 -COOH group That"s why krebs cycle is also termed as Tricarboxylic acid cycle.