Question

Which of the following substances serves as an intermediate through which all cellular energy sources are interconvertible?

acetyl CoA
glucose
pyruvate
citrate

Answer 1

Interconvertible, like fructose to glucose to glycogen to fat back to glucose? What does pyruvate do?

Answer 2

pyruvate

Answer 3

Look at biochem testbook. "Acetal CoA is a cental character in the cellular metabolism... [through which] all the energy sources (fats, proteins, and carbohydrates) are interconvertible".

Acetyl CoA is the correct answer.

Answer 4

Acetyl CoA is the answer according to the book, pg 741.