(Solved): 40. How does the regulation of potassium and sodium ions occur in the Distal Convoluted Tubule? ...

40. How does the regulation of potassium and sodium ions occur in the Distal Convoluted Tubule? Include the hormone involved, the movement of ${\mathrm{Na}}^{+}$ions, the movement of ${\mathrm{K}}^{+}$ions and the movement of ${\mathrm{H}}^{+}$ions in exchange for ${\mathrm{Na}}^{+}$moving out of the nephron. When are ${\mathrm{K}}^{+}$ions exchanged for ${\mathrm{Na}}^{+}$ions and when are the ${\mathrm{K}}^{+}$ions switched with ${\mathrm{H}}^{+}$ions in exchange for 41. Explain the role of the Distal Convoluted Tubule in acid-base balance (this discussion is specifically about the movement of ${\mathrm{H}}^{+}$out of the plasma and into urine. How does it contribute to maintaining the $\mathrm{pH}$ of urine, and what factors influence this process?