This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Physiology
[{'content': 'Iron absorption takes place in which pa of intestine \nSelect and explain. \nA. Duodenum, B. Ileum, C. Jejurmm, D. Colon', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Almost all iron absorption occurs in the duodenum. Most of the iron in the diet is in the ferric(3+) form whereas it is the ferrous (2+) form that is absorbed.Transpo of iron has occurred the DMT 1 and ferropoin.70% of iron in the body is in the hemoglobin.(Ref: Ganong&;s Review of medical physiology, 23rd edition, page 459)', 'role': 'assistant'}]