This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lipids, Subject name: Biochemistry
The co-enzyme required for the synthesis of fatty acid synthesis: 
Select and explain. 
A. FAD, B. FADH2, C. NAD, D. NADPH2
D: NADPH2
Answer: D: NADPH2 
Explanation: Ans. D. NADPH2 Importance of NADPH:Biosynthesis of fatty acids and steroids.Detoxification of drugs by hydroxylation.Preserve integrity of RBC membrane.