Chapter 20, Problem 20.18EP

(a)

Interpretation Introduction

Interpretation: The name of the standard amino acids that have side chains with the given characteristic has to be stated.

Concept introduction: Amino acid is a compound that is composed of ${\text{NH}}_{\text{2}}$ (amino) group and $\text{COOH}$ (carboxylic acid) group.  The amino acids that are present in proteins are called standard amino acids.

(b)

Interpretation Introduction

Interpretation: The name of the standard amino acids that have side chains with the given characteristic has to be stated.

Concept introduction: Amino acid is a compound that is composed of ${\text{NH}}_{\text{2}}$ (amino) group and $\text{COOH}$ (carboxylic acid) group.  The amino acids that are present in proteins are called standard amino acids.

(c)

Interpretation Introduction

Interpretation: The name of the standard amino acids that have side chains with the given characteristic has to be stated.

Concept introduction: Amino acid is a compound that is composed of ${\text{NH}}_{\text{2}}$ (amino) group and $\text{COOH}$ (carboxylic acid) group.  The amino acids that are present in proteins are called standard amino acids.

(d)

Interpretation Introduction

Interpretation: The name of the standard amino acids that have side chains with the given characteristic has to be stated.

Concept introduction: Amino acid is a compound that is composed of ${\text{NH}}_{\text{2}}$ (amino) group and $\text{COOH}$ (carboxylic acid) group.  The amino acids that are present in proteins are called standard amino acids.