Question

What are the simple units that make up proteins?

Answer 1

Amino acids

Explanation:

Proteins ( or polypeptides ) contains long chains of amino acids bonded together by peptide bonds.

Amino acids also act as buffers in our cells as they have the chemical property of being able to act as both an acid and a base, helping the cell to regulate pH.

Answer 2

Well, they are called amino acids.

Explanation:

Amino acids are acids that contain an amine group `(-NH_2)` and a carboxyl group `(-COOH)`. When thousands combine through peptide bonds, a protein is formed.