Question

pH of lysosome interior is:

• A. 10-12
• B. 8-10
• C. 5-7
• D. 4-5

Answer 1

The correct option is: B

Explanation of the correct option:

Lysosomes are membrane-bound organelles that contain acid hydrolases or digestive enzymes that digest excess or worn out organelles, food particles, engulfed viruses or bacteria, and macromolecules.

The pH of lysosomes ranges from 4.5 - 5 which is slightly acidic compared to the cytosol which has a pH of 7.2.

Explanation of the incorrect option:

Option A: The pH of lysosomes ranges from 4.5 - 5 which is slightly acidic compared to the cytosol which has a pH of 7.2.

Option C: The pH of lysosomes ranges from 4.5 - 5 which is slightly acidic compared to the cytosol which has a pH of 7.2.

Option D: The pH of lysosomes ranges from 4.5 - 5 which is slightly acidic compared to the cytosol which has a pH of 7.2.

Final answer: pH of lysosome interior is 4-5.