Practice question
Question
Acid phosphatase is a marker of
Explanation
Acid phosphatase, active at acidic pH, is concentrated within lysosomes and serves as established lysosomal marker enzyme alongside cathepsins. Histochemical staining reveals lysosomal localization. Plasma membrane markers include Na+/K+ ATPase, mitochondria cytochrome oxidase, ER glucose-6-phosphatase for fractionation.
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