Question

13. A change in pH is able to cause protein denaturation because
a. The amino group is sensitive to OH-
b. The molecules startmoving so rapidly that they come apart

c. Water is neutral.
d. It causes the areas that were hydrophobic to become hydrophilic

e. The primary structure changes when the [H+] changes

Answer 1

Answer:

The correct answer is Option a. The amino group is sensitive to OH-.

Explanation:

Protein denaturation means change in the structure of the amino acid. Amino acid is sensitive to various environmental factors such as pH. If the pH of the medium increases or decreases from optimum level, denaturation of protein occurs. Hydrogen bond is present in between amino acid molecules. When pH changes, hydrogen bond is disturbed and structure of protein changes.