Question

Proximal convoluted tubule of nephron is responsible for

• A. Filtration of blood
• B. Maintenance of Glomerular Filtration Rate
• C. Selective reabsorption of glucose, amino acid, NaCl and water
• D. Reabsorption of salts only

Answer 1

Answer: (C)

Selective reabsorption of glucose, amino acid, NaCl and water

Proximal convoluted tubule is involved in selective reabsorption of glucose, amino acids, salt and water ino peritubular capillary network. Glucose, amino acids and salts are actively reabsorbed while water reabsorption is a passive process. Glomerular filtration of blood and maintanence of glomerular filtration rate are the functions of afferent arteriole and the glomerulus. Correct answer is C.