How do the villi of the small intestine function?
In what respect does the absorption of simple sugars differ from that of fats?
2007-01-23 22:42:21 · 3 answers · asked by Lanez B 1 in Science & Mathematics ➔ Biology
The villi increases the surface area to facilitate the absorption of digested nutrients. They even have surface microvilli to further increase surface area.
After entering the villi, simple sugars diffuse into the capillaries and go into te blood stream. Lipids on the other hand, after diffusing into the villi, enter a lacteal, which is part of the lymphatic system.
Eventually, these fats (lipids) do enter the blood stream.
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Hang in there.
2007-01-24 01:19:11 · answer #1 · answered by ursaitaliano70 7 · 0⤊ 0⤋
Villi help in increasing the surface area of the intestine to facilitate more absorption.
2007-01-23 23:44:32 · answer #2 · answered by Leo 2 · 0⤊ 0⤋
villi of small intestine has a direct supply of blood capillaries. the food is transferred from the intestine to blood capillaries through active transport in which a carrier transport the food molecules into the blood consuming ATP.
i cannot say about the difference.
2007-01-23 23:43:58 · answer #3 · answered by divas 3 · 0⤊ 0⤋