Vitamins serve as chemical partners with which of the following to help maintain normal cell functions?

Vitamins play a crucial role in maintaining normal cell functions, particularly as cofactors for enzymes. Enzymes are biological catalysts that speed up chemical reactions in the body, and many of these reactions require vitamins to be effective. For instance, certain B vitamins are essential for enzyme function in carbohydrate metabolism and the production of energy. Without these vitamins, the enzymes may not function optimally, leading to impaired metabolic processes and cellular functions.

While options like minerals, hormones, and amino acids also play important roles in cellular functions, they do not serve in the same direct capacity as vitamins do in relation to enzymes. Minerals, for example, may be co-factors as well, but the question specifically asks about the partnership with vitamins in the context of cell function, which aligns most closely with enzymes.