protein and lipid digestion Flashcards
1
Q
define digestion
A
mechanical and chemical (hydrolysis) break down of nutrients into small, soluble molecules that can be absorbed through the lining if the ileum into the blood
2
Q
what are the characteristics of the ileum
A
- Villi + microvilli - large surface area
- One cell thick- Short diffusion distance
3
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4
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8
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