alleryIn a eukaryotic cell, lysosomal enzymes work at
AAcidic pH around 4 to 5
BNeutral pH around 7
CVariable pH depending on substrate
DHighly basic pH around 9
Answer & Solution
Correct answer: A. Acidic pH around 4 to 5
Lysosomal hydrolases are acid hydrolases active around pH 4-5. The acidic interior is maintained by V-type ATPases pumping protons into the lysosome.
The cytoplasmic pH remains near neutral, isolating cytosol from these enzymes.
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