Digestion and Absorption — BIOLOGY STD 11 Science — Question
Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYDigestion and Absorption2 Marks
Question
Mention the modification or structural features of ileum, which make it suitable for absorption of nutrients.
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Answer
The mucosa is folded into finger-like projections called villi. The cells lining the villi bear microvilli giving it a brush-bordered appearance. These two features increase the surface area of intestine for absorption. The villi are richly supplied with a network of blood capillaries and a large lymph vessel, lacteal, for easy absorption of nutrients.
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