Question

At which pH enzymes of lysosomes are usually active?

• A. pH 5
• B. pH 12
• C. pH 8
• D. At any pH

Answer 1

The correct option is A pH 5

Lysosomes are the small, single membrane-bound vesicle-like organelle. It consists hydrolytic enzymes that digest food, foreign particles, dead or weak cell content. The enzymes remain inactive inside the lysosomes. When the pH of the interior lysosome turns acidic (pH 4-5), enzymes become active. Thus, the correct answer is option A.