Question

4. Why do we need proteins?
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Answer 1

Explanation:

Your body uses proteins to build and repair tissues. You also use protein to make enzymes, hormones, and other body chemicals. Protein is an important building block of bones, muscles, cartilage, skin and blood.

Answer 2

Answer:

after water , protein is the main component of cells and essential for lifes

we need proteins to make enzymes, hormones and other body chemicals .