ANATOMY

Detailed explanation-1: -Glucose, amino acids, salts and high amount of water are reabsorbed in the nephron during the second step of urine formation, i.e., the selective reabsorption.

Detailed explanation-2: -For a material to be reabsorbed via receptor-mediated transport, the molecule must first diffuse to the wall of the nephron tubule. The molecule must then cross the luminal wall into the tubule epithelial cells. The molecule could then diffuse across the tubule epithelial cell to the basolateral cell membrane.

Detailed explanation-3: -Substances such as glucose and amino acids, useful to the body are reabsorbed from the tubule in the proximal tubule. Proximal tubule is the portion of the nephron that lies between Bowman’s capsule and the loop of Henle.

Detailed explanation-4: -In the nephron, selective reabsorption occurs in the proximal convoluted tubule because it is highly permeable.