Chapter 9, Problem 5Q

Summary Introduction

To review:

The path of the radio-labeled carbon in the citric acid cycle (CAC) along with the reason behind two turns of this cycle is required to be run prior to the release of carbon atoms in the form of carbon dioxide (¹⁴ CO₂).

Introduction:

The citric acid cycle is an essential biochemical pathway that releases chemical energy stored in the acetyl CoA. This process takes place inside the mitochondria. Acetyl CoA produced from the pyruvate by the enzyme pyruvate dehydrogenase. In CAC, two molecules of carbon dioxide get released in every turn of the cycle.