Question:

In human alimentary canal the small intestine is designed to absorb the digested food. Justify this statement.

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The large surface area of the small intestine, facilitated by villi and microvilli, plays a key role in efficient absorption of nutrients.
Updated On: May 19, 2025
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Solution and Explanation

The small intestine is designed to absorb digested food due to the following reasons: It has a large surface area due to villi and microvilli. This increases the surface area for nutrient absorption. Villi contain a network of blood vessels that carry absorbed nutrients like glucose, amino acids, and vitamins into the bloodstream. The epithelial cells of the small intestine secrete enzymes, aiding in further digestion and absorption. The small intestine is long enough to provide sufficient time for nutrients to be absorbed into the bloodstream.
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