Chapter 21, Problem 51A

Interpretation Introduction

Interpretation:

The water-repelling amino acid side chain needs to be identified.

Concept introduction:

Protein- proteins are polymer of the amino acids and they are joined together with a peptide linkage.

Amino acid is composed of at least two functional group one amine, and one carboxylic group attached with a side chain to the central carbon.

Answer to Problem 51A

The side chain of amino acid is hydrophobic in nature.

Explanation of Solution

Hydrophobic, the alkyl or R group is attached with central carbon. The side chain (R) having the water-repelling property.

Conclusion

The amino acid chain bound with different types of groups and side chain, where side chain is hydrophobic in nature.