Question

Which of the following options has the correct pair of nephron parts that maintain pH and ionic balance of blood?

• A. Proximal convoluted tubule and Henle's loop
• B. Distal convoluted tubule and collecting duct
• C. Proximal convoluted tubule and glomerulus
• D. Collecting duct and Henle's loop

Answer 1

Answer: (B)

$DCT$ maintains the $pH$ and ionic balance in the blood by reabsorption of $N{a}^{+}$, water, $HC{O}_3^{-}$ and selective secretion of $H^{+}$, $K^{+}$ and $N{H}_3$. Collecting duct plays a role in the maintenance of $pH$ and ionic balance of blood by reabsorption of water, and selective secretion of $H^{+}$ and $K^{+}$ ions