Chapter 23, Problem 23.28EP

(a)

Interpretation Introduction

Interpretation: To draw the three-subunit block diagram for ${\text{NAD}}^{+}$.

Concept introduction: Coenzymes are non-protein organic compounds that are used along with the enzymes and help to carry forward the reaction. Coenzymes cannot perform on their own alone. Nicotinamide adenine dinucleotide $\left({\text{NAD}}^{+}\right)$ is also an example of a coenzyme.

Nicotinamide adenine dinucleotide $\left({\text{NAD}}^{+}\right)$ is employed in various metabolic reactions. It also acts as an oxidizing agent in various reactions like oxidation of secondary alcohol into a ketone. Nicotinamide adenine dinucleotide $\left({\text{NAD}}^{+}\right)$ exists in two forms. The structure of ${\text{NAD}}^{+}$ is:

Here, $\text{R}=\text{Ribose-ADP}$.

(b)

Interpretation Introduction

Interpretation: To draw the six-subunit block diagram for ${\text{NAD}}^{+}$.

Concept introduction: Coenzymes are non-protein organic compounds that are used along with the enzymes and help to carry forward the reaction. Coenzymes cannot perform on their own alone. Nicotinamide adenine dinucleotide $\left({\text{NAD}}^{+}\right)$ is also an example of a coenzyme.

Nicotinamide adenine dinucleotide $\left({\text{NAD}}^{+}\right)$ is employed in various metabolic reactions. It also acts as an oxidizing agent in various reactions like oxidation of secondary alcohol into a ketone. Nicotinamide adenine dinucleotide $\left({\text{NAD}}^{+}\right)$ exists in two forms. The structure of ${\text{NAD}}^{+}$ is:

Here, $\text{R}=\text{Ribose-ADP}$.