Chapter 18, Problem 18.44AP

(a)

Interpretation Introduction

Interpretation:

Name and draw the structure of amino acid that contains thiol group.

Concept introduction:

Many amino acids are linked together through amide bonds to form a biologically large molecule known to be proteins.

Amino acid had both amino functional group and carboxyl functional group in a molecule.

Amino functional group is $(-N{H}_2)$ and carboxyl functional group is $(-COOH)$ and a $R$ group is considered as side chain, when all these are bonded to same carbon atom.

Each amino acid can be represented by both three letter short hand code as well as one letter code.

(b)

Interpretation Introduction

Interpretation:

Name and draw the structure of amino acid that contains phenol group.

Concept introduction:

Many amino acids are linked together through amide bonds to form a biologically large molecule known to be proteins.

Amino acid had both amino functional group and carboxyl functional group in a molecule.

Amino functional group is $(-N{H}_2)$ and carboxyl functional group is $(-COOH)$ and a $R$ group is considered as side chain, when all these are bonded to same carbon atom.

Each amino acid can be represented by both three letter short hand code as well as one letter code.