Chapter 23, Problem 26QAP

(a)

Interpretation Introduction

Interpretation:

The number of tripeptides obtained from amino acids valine, lysine and phenylalanine needs to be determined.

Concept Introduction:

Amino acids are organic compounds containing amino as well as carboxylic groups. The general structure of an amino acid is shown as follows:

  ${\text{H}}_{\text{2}}\text{N}-\text{CH}\left(R\right)-\text{COOH}$

Here, R group is different for different amino acids.

These amino acids are linked through peptide bonds and results in the formation of protein. Thus, amino acids are simple unit of a peptide chain.

(b)

Interpretation Introduction

Interpretation:

The structural formula of tripeptides and their name according to shorthand abbreviation of amino acids needs to be determined.

Concept Introduction:

Amino acids are organic compounds containing amino as well as carboxylic groups. The general structure of an amino acid is shown as follows:

  ${\text{H}}_{\text{2}}\text{N}-\text{CH}\left(R\right)-\text{COOH}$

Here, R group is different for different amino acids.

These amino acids are linked through peptide bonds and results in the formation of protein. Thus, amino acids are simple unit of a peptide chain.