(a) Name any two neutral amino acids and basic amino acids.
(b) List any three essential amino acids for man.
( c) Name the covalent bond that links two amino acids in the protein.

Explanation

(a) Neutral amino acids : Glycine, alanine.
Basic amino acids : Lysine, arginine.
(b) Leucine, isoleucine, lysine.
( c) Peptide bond.