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Digestion and Absorption — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYDigestion and Absorption1 Mark
Question
Mention the modifications 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 and form the brush-bordered epithelium; these two features this increase the surface area 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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