This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory chain, Subject name: Biochemistry
[{'content': 'A major lipid of mitochondrial membrane is \nSelect and explain. \nA. Lecithin, B. Inositol, C. Plasmalogen, D. Cardiolipin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Inner mitochondrial membrane: The inner mitochondrial membrane is very rich in proteins and the ratio of lipid to proteins is only 0.27:1 by weight. It contains high propoion of the phospholipid cardiolipin. In contrast to outer membrane, the inner membrane is viually impermeable to polar and ionic substances. These substances enter the mitochondrion only through the mediation of specific transpo proteins.Ref: MN Chatterjea Textbook of Medical Biochemistry, 8th edition, page no: 6', 'role': 'assistant'}]