Question

question 4 of 25
amino acids are the basic unit of which biomolecules?
a. nucleic acids
b. carbohydrates
c. lipids
d. proteins

Explanation:

Proteins are polymers of amino - acids. Nucleic acids are made of nucleotides, carbohydrates of monosaccharides, and lipids have various building blocks but not amino - acids.

Answer:

D. Proteins