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
[{'content': 'Apolipoprotein activating LCAT: \nSelect and explain. \nA. B-48, B. Apo A-I, C. Apo A -II, D. B-100', 'role': 'user'}, {'content': "Answer: B \nExplanation: LCAT(Lecithin cholesterol acyltransferase) is a plasma enzyme.This is similar to the lipoproteins and can be activated by Apo -I. Also Know: (LCAT) activity is associated with HDL containing apo A-I. As cholesterol in HDL becomes esterified, it creates a concentration gradient and draws in cholesterol from tissues and from other lipoproteins, thus enabling HDL to function in reverse cholesterol transpo Ref: Botham K.M., Mayes P.A. (2011). Chapter 26. Cholesterol Synthesis, Transpo, & Excretion. In D.A. Bender, K.M. Botham, P.A. Weil, P.J. Kennelly, R.K. Murray, V.W. Rodwell (Eds), Harper's Illustrated Biochemistry, 29e.", 'role': 'assistant'}]