Question

dna plays a major role in heredity, composing the genes that are passed down from parent to offspring. it also plays a major role in the everyday workings of your cells. it does this by creating molecules, such as enzymes, that regulate cell functions. these enzymes belong to a larger class of molecules known as a rna. b proteins. c ion pumps. d amino acids.

Explanation:

Enzymes are a type of protein that catalyze biochemical reactions in cells. RNA has different functions like in protein - synthesis but is not the class that enzymes belong to. Ion pumps are membrane - associated proteins for transporting ions and not the general class for enzymes. Amino acids are the building blocks of proteins, not the class that enzymes belong to.

Answer:

B. proteins