This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biosynthesis of Fatty Acids and Eicosanoids, Subject name: Biochemistry
Fatty acids used by all except - 
Select and explain. 
A. Liver, B. Muscle, C. Brain, D. Kidney
C: Brain
Answer: C: Brain 
Explanation: Ans. is 'c' i.e., Brain o Fatty acids do not serve as fuel for the brain, because they are bound to albumin in plasma; hence cannot cross blood-brain barrier.