Question

1. How are intestinal epithelial cells and renal tubular cells similar?
   1. They both have Na⁺/amino acid co-transporters on the basal surface of the cell.
   2. They both require Na⁺/K⁺ pumps to create a Na⁺ gradient on the basal side of the cell.
   3. They both actively transport K⁺ into the cell from the lumen.
   4. They both have a close relationship with capillaries to promote motility of the chyme or filtrate.

Answer 1

Option A is true

Intestinal epithelial cell and renal tubular cell both have Na Aminoacid come transporters on the basal side of the cell that will help in transportation of the absorbed Aminoacids both from the intestine and renal tubules.

Sodium gradient generation is not required in intestinal epithelial cell

Renal tubular cell mostly secretes potassium from the blood or inside of the cell into the filtrate

Close relationship to the capillaries is for the purpose of easy exchange but not for motility

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