<prompt> Answer this question truthfullyHow does K reabsorption occur in the α-intercalated cells, and what is the name of the pump responsible for this process?  <response>: <reason> K reabsorption in the α-intercalated cells occurs through the H-K ATPase pump. This pump is responsible for exchanging hydrogen ions H for potassium ions K in the α-intercalated cells of the collecting ducts in the kidneys. This process helps to maintain the balance of potassium ions in the body by reabsorbing K from the urine back into the bloodstream. The H-K ATPase pump is also involved in regulating the pH of the urine by secreting hydrogen ions into the urine, which helps to maintain the acid-base balance of the body. 