Multiple choice Lysosomal enzymes work efficiently inside the lysosome because they work best at basic pH work best at neutral pH inactivate other enzymes resist basic pH work efficiently at acidic pH Reveal answer Fill a bubble to check yourself E Correct answer Explanation All lysosymal enzymes work best at acidic pH and therefore they are known as acid hydrolases. They do not work efficiently at basic pH. The inside of the lysosome is maintained at 4.8 pH with the help of special hydrogen ion pump.