Question

Name a common nutrients thai is absorbed in the small intestine and reabsorbed by the kidney tubules

Answer 1

Glucose, amino acids, water and salt are primarily absorbed in the small intestine and again reabsorbed in the kidneys.

This phenomenon is called reabsorption and occurs due to the osmotic pressure of the fluid passing through the proximal convoluted tubules of the kidneys.

Then the fluid passes on as the postglomerular fluid and turns into the urine for excretion.

Answer 2

Proximal Convoluted Tubule.

Tubular Reabsorption.

Ions of Potassium, sodium, calcium, amino acids, glucose, bicarbonate ion, and water are reabsorbed back into the bloodstream.

The loop of Henle. Reabsorption, Distal Convoluted Tubule.

Reabsorption, Collecting Duct. Reabsorption. Fluid located infiltrate entering the proximal convoluted tubule is absorbed again into the peritubular capillaries.

This is driven by sodium originated from the lumen into the blood by means of  Na+/K+ ATPase in the membrane basolateral of the epithelial cells.

Sodium reabsorption is primarily executed by this P-type ATPase.