BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The non-polar amino acids (shown here) include: alanine, cysteine, glycine, isoleucine, leucine, methionine, phenylalanine, proline, tryptophan, tyrosine and valine.

Detailed explanation-2: -The non-polar amino acids include: alanine, cysteine, glycine, isoleucine, leucine, methionine, phenylalanine, proline, tryptophan, tyrosine and valine.

Detailed explanation-3: -Proline is an amino acid and belongs to the class which has hydrocarbon R-groups. “It does not contain the amino group-NH2 but is rather a secondary amine. The secondary amine nitrogen is in the protonated NH2+ form under biological conditions, while the carboxy group is in the deprotonated-COO-form.

Detailed explanation-4: -All the 20 amino acids, except proline, found in proteins have an amino group and a carboxyl group attached to the same carbon atom, namely the-carbon. They differ only in the side chains (R groups).