Question

Consider the following statements:
1. On hydrolysis, proteins give amino acids.
2. The coagulation of protein is called denaturing.
3. A protein is best described as a polypeptide.
Which of the statements given above is/are true?

• A. Only 1
• B. Only 2
• C. 2 and 3
• D. 1, 2 and 3

Answer 1

The correct option is D 1, 2 and 3

Protein hydrolysis is the breakdown of protein into smaller peptides and free amino acids.

The coagulation of protein is called denaturing. Denaturation of proteins involves the disruption and possible destruction of both the secondary and tertiary structures. Since denaturation reactions are not strong enough to break the peptide bonds, the primary structure (sequence of amino acids) remains the same after a denaturation process.

Proteins are formed from one or more polypeptides joined together. Therefore, protein is best described as a polypeptide.