Question

PCT is responsible for

• A. Filtration of blood
• B. Maintenance of glomerular filtration rate
• C. Reabsorption of salt only
• D. Selective reabsorption of glucose, amino acids, $NaCl$ and $H_{2}0$

Answer 1

The correct option is D Selective reabsorption of glucose, amino acids, $NaCl$ and $H_{2}0$

The proximal convoluted tubule (PCT) is lined with cuboidal epithelium with brush border. It increases the surface area for reabsorption. Almost all essential nutrients and 70-80 % of electrolytes and water are reabsorbed by PCT. The PCT is responsible for selective reabsorption of glucose, amino acids, $NaCl$ and $H_{2}0$.

So, the correct answer is 'Selective reabsorption of glucose, amino acids, $NaCl$ and $H_{2}0$'.