Chapter 20, Problem 18RE

Interpretation Introduction

Interpretation:

The role played by the respiratory complex in the citric acid cycle is to be explained.

Concept introduction:

Cytochromes are the type of proteins that consist of iron as the heme group.

$\text{NADH}-\text{CoQ}\text{oxidoreductase}$ is the first complex in the electron transport chain and it catalyzes the transfer of electrons from $\text{NADH}$ to $\text{coenzyme}\text{Q}$.

$\text{Coenzyme}\text{Q}$ is the redox coenzyme in the mitochondrial electron transport.

Oxidation is the addition of an electronegative element or the removal of an electropositive element in a chemical reaction.

Reduction is the addition of an electropositive element or the removal of an electronegative element in a chemical reaction.

The $\text{succinate}-\text{CoQ}\text{oxidoreductase}$ is the second complex of the electron transport chain.