This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Heart, Circulation, and Blood, Subject name: Physiology
[{'content': 'Which one of the following is not a transport or binding protein? \nSelect and explain. \nA. Erythropoietin, B. Ceruloplasmin, C. Lactoferrin, D. Transferrin', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' ie Erythropoietin (Ref: Harper, 26/e, p609, p620, p583, Ganong 22/e, p488)Erythropoietin is a plasma protein that acts as a hormone. It's the major regulator of human erythropoiesis.Other Options.Ceruloplasmin - transports copper.Transferrin - transports iron.Lactoferrin - binds iron.", 'role': 'assistant'}]