Chapter 21, Problem 21.80CP

Interpretation Introduction

Interpretation:

The reason that how $O_2$ indulges in combustion process of food in spite it is not directly involved in the citric acid cycle should be explained.

Concept Introduction:

The series of reaction present in these reactions is called as metabolic pathway.

First the consumption of food gets digested which results in production of small molecules.

Glycolysis is a pathway which describes conversion of one molecule of glucose into 2

Pyruvate molecules. It involves totally 10 set of reactions with it.

Krebs cycle essentially involves the oxidation of acetyl CoA to ${\text{CO}}_{\text{2}}\text{and}{\text{H}}_{\text{2}}\text{O}$. It is the final common oxidative pathway for carbohydrates, fats, amino acids.

Citric Acid Cycle: It involves 8 series reaction which converts acetyl group present in acetyl coenzyme A into 2 $C{O}_2$ molecules.

Figure 1