Proteins are made up of `alpha` - amino acids. They are actually polypeptides having high molecular mass. How do amino acids exist as zwitherion ?

Proteins are made up of alpha - amino acids. They are actually polypeptides having high molecular mass. Name an optically inactive alpha - amino acid found in proteins.

Proteins are made up of alpha - amino acids. They are actually polypeptides having high molecular mass. Give one example each for neutral, acidic and basic alpha - amino acids.

In aqueous solution, amino acid exist as

Which is alpha -amino acid?

Proteins are the polymers of alpha - amino acids. The structure and shape of proteins can be discussed at four different levels - namely primary, secondary, tertiary and quaternary Give an account of structure and shape of proteins considering the above levels.