Question

the gut lumen, electrolytes like Na+ and cl+ are absorbed respectively by​

Answer 1

Answer:

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Explanation:

Sodium is absorbed from the intestinal lumen by several mechanisms, most prominently by cotransport with glucose and amino acids, and by Na+/H+ exchange, both of which move sodium from the lumen into the enterocyte.

Absorbed sodium is rapidly exported from the cell via sodium pumps - when a lot of sodium is entering the cell, a lot of sodium is pumped out of the cell, which establishes a high osmolarity in the small intercellular spaces between adjacent enterocytes.

Water diffuses in response to the osmotic gradient established by sodium - in this case into the intercellular space. It seems that the bulk of the water absorption is transcellular, but some also diffuses through the tight junctions.

Water, as well as sodium, then diffuses into capillary blood within the villus.

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Answer 2

Answer:

The gut lumen, electrolytes like Na+ and cl+ are absorbed respectively by​ sodium.

Explanation:

• Numerous processes carry sodium from the intestinal lumen into the enterocyte, but two of them—cotransport with glucose and amino acids and Na+/H+ exchange—are most important.

• Electrolytes are ingested by food and liquids and are expelled through sweat, urine, and feces.
• An electrolyte imbalance can happen if one factor in this equation is off (due to excessive sweating, diarrhea, etc.).
• Fatigue, headaches, and muscle cramps are indications of electrolyte shortage in particular.

• The small and large intestines are principally where water and electrolytes are absorbed.
• Constipation or diarrhea can result from a dysregulation of this absorption.
• Numerous processes carry sodium from the intestinal lumen into the enterocyte, but two of them—cotransport with glucose and amino acids and Na+/H+ exchange—are most important.

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