what is proteins ......
Answers
Answer:
Protein is a macronutrient that is essential to building muscle mass. ... Each gram of protein contains 4 calories. Protein makes up about 15 percent of a person's body weight. Chemically, protein is composed of amino acids, which are organic compounds made of carbon, hydrogen, nitrogen, oxygen or sulfur
Answer:
Chemically proteins are polyamides which are high molecular weight polymers of the monomer units i.e. alpha-amino acids.
OR
It can also be defined as Proteins are the biopolymers of a large number of alpha-amino acids and they are naturally occurring polymeric nitrogenous organic compounds containing 16% nitrogen and peptide linkages(- CO - NH -).
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Extra :
Fibrous proteins: The proteins in which the polypeptide chains lie parallel (side by side) to form fibre-like structure, are called fibrous proteins. The polypeptide chains held together by hydrogen bonds. These proteins are insoluble in The fibrous proteins water. are tough and insoluble in water, and dilute acids or bases.