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# The destruction of the biological nature and activity of proteins by heat or by chemical agent is called

$\begin {array} {1 1} (A)\;dehydration & \quad (B)\;denaturation \\ (C)\;denitrogenation & \quad (D)\;deammination \end {array}$

Proteins are denatured and lose their biological activity on heating or by chemical agents due to breaking of peptide linkage
Ans : (B)