Question

which of the following is not a function of proteins? function as enzymes use as antibodies build muscle good source of energy

Explanation:

Proteins can function as enzymes to catalyze reactions, act as antibodies for immune - response, and are essential for muscle building. While proteins can be used for energy in extreme cases, they are not a good source of energy compared to carbohydrates and fats. Carbohydrates are the body's preferred energy source, followed by fats, and proteins are mainly used for other vital functions like structure, regulation, and transport.

Answer:

good source of energy