Question

The subunits (building blocks) of proteins are

Answer 1

Answer:

C. amino acids.

Explanation:

Amino acids are organic molecules that combine to form proteins  whereas a nucleotide is an organic compound that combines a sugar molecule and a phosphate . Phospolipids are fatty acids that also contain a phosphate molecule and lastly carbohydrates which are also known as saccharides are made up of Carbon , Hydrogen and Oxygen atoms .