Chapter 24, Problem 2STP

Interpretation Introduction

Interpretation: To match the category of an organic compound for the given biological molecule.

Concept introduction:

An amino acid is a compound that consists of two functional groups that are amino group $\left(-{\text{NH}}_{\text{2}}\right)$ and carboxyl group $\left(-\text{COOH}\right)$ along with hydrogen and a side group (R group).

All these groups are bonded covalently to each other.

Answer to Problem 2STP

Amino acids are most closely identified with a biological molecule i.e., protein.

Explanation of Solution

Amino acids are the smaller molecules that make up a protein. The molecules of amino acids are composed of carbon, nitrogen, hydrogen, and oxygen. There are $20$ different amino acids that are beneficial in serving the structural units of all proteins.

Every amino acid consists of two functional groups that are amino group and the carboxylic acid group.

When two amino acids combine, they release a water molecule along with the formation of protein via a condensation reaction. The bond that links amino acid units together is known as a peptide bond.

Conclusion

Amino acids are most closely identified with a biological molecule i.e., protein.