-how the secretion from pancreas helps digestion of protein
Pancreas secretes pancreatic juice.
Pancreatic juice contains an enzymes called pancreatic protease.
Pancreatic protease can break down proteins into peptides, and it can even break down peptides into amino-acid.



-a large part of colon is removed.explain what change occur to his faces
Colon is used for absorption of water. If a large part of colon is removed, the faeces will contain a lot of water content.



-state2 functions of liver are not related to digestion
deamination ,, detoxification ,, breakdown of old red blood cells ,, blood glucose regulation.........



-gall bladder is removed from a patient by surgical operation.explain why this patient cannot digest fatty food properly after the operation
Gall bladder stores bile juice. Bile salt inside the bile juice can emusify the fat to oil droplets, and hence can increase the digestion of the fat. But if gall bladder is removed, bile juice can no longer stored. Once the bile juice is produced, it will then lose. so, th epatient can't digest fatty food properly because emulsification by the bile salt can't be occur.



-an obese person had a surgical operation to remove part of ileum.why this may lead to a significant reduction of his body weight several months after the operation
Ileum is responsible for the absorption of substance after the digestion has done.
If some part of the iluem has removed from the person, the absorption decreases and less substance are absorbed into the person's body. So, the body weight of the person reduce significantly.




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[ 本帖最後由 敏_-3- 於 2007-5-3 01:05 PM 編輯 ]