Question

proteins contain _____​

Answer 1

Proteins are made up of building blocks called amino acids. There are about 20 different amino acids that link together in different combinations. Your body uses them to make new proteins, such as muscle and bone, and other compounds such as enzymes and hormones. It can also use them as an energy source.

Answer 2

Answer:

Amino acids

Explanation:

Protein is a polymer whose monomer is amino acids.