Q20. Protein found in a biological system with a unique three-dimensional structure and biological activity is called a native protein. Protein denaturation occurs when a protein in its native form is subjected to a physical change like a change in temperature or a chemical change like a change in pH. Explain the cause.
Answer: Due to physical and chemical changes, hydrogen bonds in proteins are disturbed. Due to this, globules unfold, and, the helix gets uncoiled, the protein loses its biological activity. This is known as the denaturation of proteins.
