alleryStart learning →Where are nutrients absorbed into the bloodstream?
AAcross the lining of the esophagus
BAcross the wall of the small intestine
CAcross the lining of the rectum wall
DAcross the surface of the tongue
Answer & Solution
Correct answer: B. Across the wall of the small intestine
1. Food is broken down further in the small intestine by enzymes from several organs.
2. The nutrients then cross the epithelial cells lining the small intestine walls.
3. That is the point at which they enter the bloodstream.
4. The large intestine that follows absorbs water rather than nutrients.
_Source: OpenStax Biology 1e (CC BY 4.0), Ch 34 "Animal Nutrition and the Digestive System", section Monogastric: Single-chambered Stomach_
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