The Biuret test is not given by:

Denaturation of proteins leads to the loss of their biological activity due to:

Read the following statements carefully:
$(A)$ Albumin is a simple protein.
$(B)$ The amino acid alanine contains an acidic side chain.
$(C)$ Insulin is a hormone.
$(D)$ Muscles contain the protein keratin.
Point out the wrong statements in the above set of statements.

Which functional group participates in disulphide bond formation in proteins?

Which of the following amino acids is optically inactive?

All of the following statements apply to proteins except