Chapter 21, Problem 21.85CP

(a)

Interpretation Introduction

Interpretation:

The name of four compounds with four carbon dicarboxylic acids in citric acid cycle should be given.

Concept Introduction:

Carboxylic acid: One $-OH$ group is attached to the carbonyl carbon atom of the compound. It is represented as $\text{RCOOH,}\text{RCOOH}\to {\text{RCOO}}^{\text{-}}{\text{+H}}^{\text{+}}$

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

(b)

Interpretation Introduction

Interpretation:

The four compound with four dicarboxylic acid groups present in citric acid cycle should be arranged from least to most oxidized.

Concept Introduction:

Carboxylic acid: One $-OH$ group is attached to the carbonyl carbon atom of the compound. It is represented as $\text{RCOOH,}\text{RCOOH}\to {\text{RCOO}}^{\text{-}}{\text{+H}}^{\text{+}}$

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

Oxidation: The oxidation is reaction that involves addition of oxygen atom or loss of electrons or removal of hydrogen atom present in the chemical compound.

Reduction: It involves removal of oxygen or addition of hydrogen to the chemical compound.