Tag: role of various nutrients

Proteins are made up of amino acids. The amino acids are molecules containing amine group (NH$ _2$), carboxylic acid group (COOH), and side chains (R).

Lysine is an essential amino acid that helps your body to absorb calcium, burn fat and maintain your skin, tendons, bones and cartilage. Most good sources of lysine are high-protein foods, like meat, cheese and legumes. With their low protein content, grains tend to be poor sources of lysine. However, high-protein grains like wheat can greatly add to your lysine intake. So, the correct answer is 'Wheat'..

Kwashiorkor manifests symptoms of protein deficiency. This can be prevented by giving children protein rich diet.

Proteomics is the cataloging and analyzing every protein in the human body most proteins differ in their folding manner, which is governed by genes. Biotechnology helps us in discovering protein structure.

Casein is protein which form the part of food for the young animal. Best source of casein is milk.

The anhydrobonds of protein are called peptide bonds. A peptide bond is formed between carboxyl group of one amino acid and amino group of adjacent.

Since proteins form components of cytoplasm, therefore it is responsible for growth and repair.

Collagen is the most abundant extracellular protein which with ageing becomes less permeable, less flexible and insoluble. These changes interfere the normal functioning of the cells (decreased inflow of nutritive substances and oxygen into cells and also decreased loss of nitrogenous waste and $CO _{2}$ from the body cells) and induce ageing.