Question

give answers of these questions : why do we need food?, how do proteins help us ​

Answer 1

A food is something that provides nutrients. Nutrients are substances that provide: energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy.

Protein is an important component of every cell in the body. ... Your body uses protein to build and repair tissues. You also use protein to makeenzymes, hormones, and other body chemicals. Protein is an important building block of bones, muscles, cartilage, skin, and blood.

Answer 2

NEED OF FOOD :

★ We need food because we we need energy to perform any any activity of function and we get energy from food.

★ food provides people with nutrients for energy and good health. The foods we eat provide us with a range of nutrients: fat, vitamins, minerals, water, carbohydrates, fibre, and protein.

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PROTEIN :

★ Our body uses protein to build and repair tissue. You need it to make enzymes, hormones, and other body chemicals. It is an important building block of bones, muscles, cartilage, skin, and blood.

★ Proteins also regulate body processes. For example, enzymes are proteins that speed up chemical reactions in the body and hormones, like insulin, are proteins that regulate the activity of cells or organs.