This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Pyruvate dehydrogenase complex has all enzyme components except 
Select and explain. 
A. Decarboxylase, B. Transacetylase, C. Dehydrogenase, D. Phosphatase
D: Phosphatase
Answer: D: Phosphatase 
Explanation: PDH complex is made up of three enzymes and requires five coenzymes. The enzymes are : (1) E1 : Pyruvate dehydrogenase or pyruvate decarboxylase, (ii) E2 : dihydrolipoyl transacetylase, and (iii) E3 dihydrolipoyl dehydrogenase. The coenzyme required are thiamine pyrophosphate (APP), lipoic acid, FAD, NAB, and CoA.