BIO既野!

I presume your homework is about material transportation inside the body.

What will happen if we put some animal cells into distilled water? Why?
When we put some animal cells into distilled water, the water potential in the distilled water is higher than it is in the cell vacuole. The water moves into the cells, through the cell membrane, by OSMOSIS. With the excess water, the cell continue to swell (increase in size). Eventually it will grow to large, and without cell wall to retrain the water intake the animal cells will burst.

A man drinks a cup of glucose solution. Describe in detail how his gut absorb the glucose and water respectively.
The glucose and the water is taken into the blood stream inside the small and large intestines respectively. Glucose is aborbed on the walls of the small intestine, where the finger-like VILLAE are located. These are packed with capillaries and the glucose are taken into the blood stream here. Glucose is taken into the vessels, through the one-cell-thick vessel wall, by ACTIVE TRANSPORT, as there is a HIGH CONCENTRATION of glucose inside the vessel as compared to the LOW CONSENTRATION of glucose inside the gut.
Similarly, water moves into the blood vessels inside the large intestine through active transport.

2007-01-11 03:51:58 補充：
This isn't fair! He copied and pasted my words. MY EXACT WORDS!!! I demand action.

presume your homework is about material transportation inside the body.

When we put some animal cells into distilled water, the water potential in the distilled water is higher than it is in the cell vacuole. The water moves into the cells, through the cell membrane, by OSMOSIS. With the excess water, the cell continue to swell (increase in size). Eventually it will grow to large, and without cell wall to retrain the water intake the animal cells will burst.

A man drinks a cup of glucose solution. Describe in detail how his gut absorb the glucose and water respectively.
The glucose and the water is taken into the blood stream inside the small and large intestines respectively. Glucose is aborbed on the walls of the small intestine, where the finger-like VILLAE are located. These are packed with capillaries and the glucose are taken into the blood stream here. Glucose is taken into the vessels, through the one-cell-thick vessel wall, by ACTIVE TRANSPORT, as there is a HIGH CONCENTRATION of glucose inside the vessel as compared to the LOW CONSENTRATION of glucose inside the gut.

When we put an animal cell in to distilled water ,the animal cell will become burst ,because the water potential of distilled water is higher thanthe water poteneialm of the animal cell by osmosis.But sometime the cell won't burst ,it only by come bigger
because the potential of the animal ans distilled water are very near ,so ther will not have too much ater go into the anomal cell .The moving of water will stop whenthe water potential of both animal cell and distilled water become equal.

I hope it can help you!!