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
NADPH+ is generated in the reaction catalysed by 
Select and explain. 
A. LDH, B. G–6 PD, C. G–3 PD, D. Alcohol dehydrogenase
B: G–6 PD
Answer: B: G–6 PD 
Explanation: Amongst the given options, only G6-PD (glucose-6-phosphate dehydrogenase) is NADP linked enzyme.
NAD+ -linked dehydrogenases: Pyruvate dehydrogenase, isocitrate dehydrogenase, malate dehydrogenase. α -ketoglutarate dehydrogenase, glutamate dehydrogenase, glyceraldehyde-3-P dehydrogenase, lactate dehydrogenase, β -hydroxy acyl CoA dehydrogenase, glycerol 3-P dehydrogenase (cytoplasmic).

NADP+-linked dehydrogenases :Glucose-6-P dehydrogenase, 6-Phosphogluconate dehydrogenase, 3-ketoacyl reductase, Enoyl reductase.

FAD-linked dehydrogenases: Succinate dehydrogenase, fatty acyl CoA dehydrogenase, glycerol-3P dehydrogenase (mitochondrial).