The Question is simple:
When we eat food, it goes into the stomach through the oesophagous. The food is made acidic, and many enzymes (proteins) are secreted, in order ro digest the food.
The food reaches the intestine, where many nutrients are absorbed. Including some of the secretions made in the stomach. ( Not all are absorbed, since many of the enzymes are macro-molecules. So, they wouldnt be able to pass the absorbing membrane).
The tricky part is that Intestines also secrete (coupled with the secretions of Liver, Gall bladder, and pancreas, which join the main tract, after stomach).. So, the food (or whatever the material is called in the intestine) is rich with the body secreted enzymes (which are incidentally protein rich). Does the body absorb all these back?, and If yes, How?..
Why does the body need to secrete all those protein rich enzymes, when it can conserve straight away?..
The most important thing is- What happens to intestinal secretions?absorbed by Rectum?
2007-06-03
04:14:44
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2 answers
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asked by
MDA
4
in
Biology