Question

quiz 6: cellular respiration quiz
which of the following must pyruvic acid (pyruvate) be converted into before the krebs cycle can proceed?
nadh
glucose
citric acid
acetyl coa

Explanation:

Before the Krebs cycle (citric - acid cycle) can start, pyruvic acid (pyruvate) undergoes pyruvate oxidation. In this process, pyruvate is converted into acetyl - CoA. NADH is a product of various steps in cellular respiration, glucose is broken down to pyruvate in glycolysis, and citric acid is the first product formed in the Krebs cycle from acetyl - CoA.

Answer:

E. Acetyl CoA