This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cell Physiology and Intercellular Connections, Subject name: Physiology
[{'content': 'All are markers of mitochondria except - \nSelect and explain. \nA. ATP synthase, B. 5-nucleotidase, C. Glutamate dehydrogenase, D. Creatine kinase', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 5-nucleotidase Organelle or fractionMarkersMitochondriaInner membrane: - ATP synthase. Succinate dehydrogenase Intermembrane space: - Creatine kinase, Adenyl kinase. Matrix: - Glutamate dehydrogenase, Pyruvate dehydrogenase, enzymes of TCA cycle & P-oxidation of fatty acidsPlasma membraneS'-Nucleotidase, Adenyl cyclase, Na+K+ ATPaseLysosomeAcid phosphataseGolgi ApparatusGalactosyl transferase, Golgi mannosidase II, Sialyl transferase, GlcNAc transferase IEndoplasmic reticulumGlucose-6-phosphatasePeroxisomeCatalase^, Urate (uric acid) oxidaseCytosolLactate dehydrogenaseNucleusDNARibosomeHigh content of RNA", 'role': 'assistant'}]