Chapter 19, Problem 19.21P

Interpretation Introduction

(a)

Interpretation:

The role of metal ion in enzymatic conversion reaction of acetaldehyde into ethanol is to be stated.

Concept introduction:

Enzymes are the biological catalyst. They are used to increase the rate of reactions which are occurring in a biological system.

The coenzyme nicotinamide adenine dinucleotide ${\text{NAD}}^{+}$ is used in biological systems for oxidation of compounds. This ${\text{NAD}}^{+}$ is reduced to $\text{NADH}$ by transferring hydride ion.

Interpretation Introduction

(b)

Interpretation:

The curved-arrow mechanism for conversion reaction of acetaldehyde into ethanol is to be predicted.

Concept introduction:

Enzymes are the biological catalyst. They are used to increase the rate of reactions which are occurring in a biological system.

The coenzyme nicotinamide adenine dinucleotide ${\text{NAD}}^{+}$ is used in biological systems for oxidation of compounds. This ${\text{NAD}}^{+}$ is reduced to $\text{NADH}$ by transferring hydride ion.