Food is assimilated into the body from digestive tract in:
Correct answer: C. Small intestine
- A. Esophagus
- B. Stomach
- C. Small intestine
- D. Rectum
Explanation
The simple molecules that result from chemical digestion pass through cell membranes of the lining in the small intestine into the blood or lymph capillaries. Absorption occurs in the small intestine. Recall small intestine has villi and microvilli to increase the surface area. Refer to image below:
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About Digestion
The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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