This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzyme Specificity and Allosteric Regulation, Subject name: Biochemistry
Marker of lysosome is: (Repeat) 
Select and explain. 
A. Acid Phosphatase, B. Lactate dehydrogenase, C. Oxidase, D. Na K ATPase
A: Acid Phosphatase
Answer: A: Acid Phosphatase 
Explanation: Ans: A (Acid Phosphatase) Ref: Harpers illustrated biochemistry, 28th edition.Explanation:Markers of Intracellular organellesPlasma Membrane: Na+ K+ ATPase & 5' NucleotidaseCytoplasm: Lactate dehydrogenaseMitochondria: Glutamate dehydrogenaseRibosome: RNAEndoplasmic reticulum: Glucose-6 phosphataseLvsosoitie: Acid phosphataseGolgi Apparatus: Galactosyl transferasePeroxisomes: Catalase & Uric acid oxidaseNucleus: DNAPeroxisome: Oxidase & catalase