This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
NADPH actions in RBC are a/e 
Select and explain. 
A. Produce ATP, B. Stabilizes the membrane, C. Reductive biosynthesis, D. GP6D deficiency causes decreased synthesis of NADPH
A: Produce ATP
Answer: A: Produce ATP 
Explanation: ATP is not produced by NADPH. ATP is produced by reducing equivalents like NADH, FADH2. W When NADH and other reducing equivalents transfer their electrons through Electron transpo chain in the Mitochondrial inner membrane and generate proton motive force which brings about the ATP synthesis by the ATP synthase complex. Both nicotinamide adenine dinucleotide (NAD+) or nicotinamide adenine dinucleotide phosphate (NADP+) are co-factors of vitamin niacin used by dehydrogenases. However NAD-linked dehydrogenases catalyse oxido-reduction reactions in the oxidative pathways of metabolism, paicularly in glycolysis, in the citric acid cycle and in the respiratory chain of mitochondria.