This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidneys and Body Fluids, Subject name: Physiology
[{'content': 'Thick Ascending Limb of loop of Henele has which channels- \nSelect and explain. \nA. Na+ C1- cotransporter, B. Na+ - 2C1- - K+ cotransporter, C. ENaC channel, D. Na+ - aminoacid cotransporter', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' i.e., Na+ - 20- - K+ cotransporter * In the thick ascending limb, a carrier (Na+ K+ 20" transporter) transports one Na+, one K+, and two Cl- from the tubular lumen into the tubular cells. This is another example of secondary active transport. From the cells Na+ is actively transported to the peritubular interstitium, across the basolateral membrane, by Na+ K+ ATPase. The K+ diffuses back into the tubular lumen and into the interstitium via ROMK and other K+ channels.', 'role': 'assistant'}]