Question

What are proteins used for?

Answer 1

Very diverse functions..I can answer how they are useful in human body

Explanation:

1. Cytoskeleton - Cell shape and motility
2. Hemoglobin - Oxygen transport
3. Antibodies - Immunity
4. Enzymes - Catalyze various reactions in the body
5. Receptors - Signal transduction
6. Cell membrane - Structural
7. Transport Proteins
8. Hormones
9. Storage proteins
10. Regulatory Proteins
    and a lot of others. Also they have in vitro functions.