2.5 Reabsorption of Water and Defecation

1. Large intestine (colon) does not secrete any enzyme
2. Water, minerals and vitamins are absorbed by the large intestine
3. Undigested and unabsorbed matter discharged as faeces through anus by the process of defecation.
4. Constipation is occur if diet lack of fibre and water.

Absorption of glucose through the Visking tube

         Visking tube represents small intestine
         Water represents bloodstream

         Amylase changes starch into glucose
         Glucose can pass through semi-permeable membrane (Visking tube) while starch cannot
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Anonymous said...

tqnx 4 dq note

Wei Kiοηg said...
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Unknown said...

I like balls

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