This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of lipid, Subject name: Biochemistry
[{'content': 'Ligand for LDL \nSelect and explain. \nA. APO B 100, B. APO E, C. APO 48, D. APO A11', 'role': 'user'}, {'content': 'Answer: A \nExplanation: LOW-DENSITY LIPOPROTEINS (LDL) LDL transpos cholesterol from liver to peripheral tissues. The only apoprotein present in LDL is apo B100. Most of the LDL paicles are derived from VLDL, but a small pa is directly released from liver. The half-life of LDL in blood is about 2 days.Ref: DM Vasudevan - Textbook of Biochemistry, 8th edition, page no: 153', 'role': 'assistant'}]