The movement of small organic molecules, electrolytes, vitamins, and water across the digestive epithelium and into the interstitial fluid of the digestive tract is called

Absorption is the movement of the small organic molecules, electrolytes, vitamins, and water across the digestive epithelium and into interstitial fluid of the digestive tract. When chyme is fully digested it is absorbed into the blood. 95% of the nutrient is absorbed in the small intestine.