Question

Which is NOT a function of proteins?

(Choose only ONE answer.)
1)working in the immune system
2)providing energy
3)working as enzymes
4)building muscle

Answer 1

Proteins are crucial for enzyme activity, immune responses, and building muscle tissues, but they are not mainly used for providing energy.

Step-by-step explanation:

Functions of Proteins:

Proteins serve several essential functions in living organisms. They act as enzymes that speed up chemical reactions, vital for various metabolic processes. Proteins such as antibodies play a significant role in the immune system, helping to fight off foreign invaders like pathogens. In the muscular system, proteins are fundamental for building muscle tissues. They also assist in maintaining cell shape and are involved in transporting substances across cell membranes. However, while proteins can be converted into glucose for energy when necessary, they are not primarily used for providing energy; this role is mainly fulfilled by carbohydrates and fats.

Answer 2

1. working in the immune system.

Step-by-step explanation:

Proteins are responsible for the development of hairs, skin, wool, and nails in our body. Meat, eggs, and fish are some of the rich food sources of proteins. Enzymes are proteins made up of amino acids and acts as biological catalysts in our body. However, glucose serves the purpose of energy provider for the metabolism which is not a protein.