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)

Distal convoluted tubule and collecting duct

Answer 2

$DCT$ maintains the $pH$ and ionic balance in the blood by reabsorption of $Na^{+}$, water, $HCO^{-}_{3}$ and selective secretion of $H^{+}$, $K^{+}$ and $NH_{3}$. 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