This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzymes, Subject name: Biochemistry
ATP synthetase is a marker of - 
Select and explain. 
A. Golgi apparatus, B. Mitochondria, C. Cytosol, D. Endoplasmic reticular
B: Mitochondria
Answer: B: Mitochondria 
Explanation: Ans. is 'b' i.e., MitochondriaOrganelle or fractionMarkersMitochondriaInner membrane : - ATP synthase, Succinate dehydrogenaseIntermembrane space : - Creatine kinase, Adenyl kinase.Matrix : - Glutamate dehydrogenase. Pyruvate dehydrogenase, enzymes of TCA cycle & b-oxidation of fatty acidsPlasma membrane5'-ISucleotidase. Adenyl cyclase, Na+K+ ATPaseLysosomeAcid phosphataseGolgi ApparatusGalactosyl transferase, Golgi mannosidase II,Sialyl transferase, GIcNAc transferase IEndoplasmic reticulumGlucose-6-phosphatasePeroxisomeCatalase, Urate (uric acid) oxidaseCytosolLactate dehydrogenaseNucleusDNARibosomeHigh content of RNA