Define how proteins acts in our body?

Answer 1

Proteins are the most versatile molecule in an organism's body including ours. A protein such as hair is structural. Pepsin, trypsin etc are enzymes(biocatalysts). Hemoglobin is a carrier protein.Immunoglobulin acts as antibody. Actin and myosin are contractile proteins.Histones and protamines are suppressors of genes.Insulin and glucagon are hormones, which are proteins.

Answer 2

Well, that's a catch-all kind of question!! Protein is a generic term for a group of chemicals called amino acids. There are a two types of amino acids - essential amino acids (these cannot be manufactured by the body, and hence must be available from food) and inessential amino acids (the body can make these).

Proteins are vital for all body functions, from tissue building and repair, to manufacturing enzymes (which are themselves proteins) and hormones to initiate, direct, and control the millions of chemical reactions that are happening in the body all the time.

The body also burns up proteins as energy as a last resort, if it is unable to get carbohydrates and fats, the preferred nutrients for converting to energy. This occurs in starvation states, when people lose muscle mass to become 'skin and bones'. This is like a person burning his doors and windows to cook food, because the gas has run out!!

Answer 3

Proteins are considered as "grow" foods. They are the building blocks or ABCs of growth, meaning they facilitate growth of cells in the body. The simplest form of protein are the amino acids which serve as the basic structure for cells and DNA.