Statement I: Disruption of the natural structure of proteins is called denaturation

Statement II: The change in colour and appearance of egg during cooking is due to denaturation

Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement I

The correct answer is option (2) Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement I.

Statement I: Disruption of the natural structure of proteins is called denaturation.

This statement is correct. Denaturation is the process of changing the structure of a protein, which can cause it to lose its function. The natural structure of a protein is determined by the sequence of amino acids in the protein. The amino acids in a protein are linked together by peptide bonds, which form a long chain. The chain of amino acids can fold into different shapes, depending on the sequence of amino acids. The shape of a protein is important for its function. For example, the shape of an enzyme is important for its ability to bind to a substrate and catalyze a reaction.

Statement II: The change in colour and appearance of egg during cooking is due to denaturation.

This statement is also correct. When an egg is cooked, the heat causes the proteins in the egg white to denature. The denatured proteins unfold, which exposes the sulfur-containing amino acids in the proteins. These sulfur-containing amino acids then react with each other to form cross-links, which give the egg white its opaque appearance.

However, Statement II is not the correct explanation of Statement I. Denaturation can occur for a variety of reasons, not just cooking. For example, denaturation can also be caused by changes in pH or by the presence of chemicals.