help!biology coursework - osmosis.PWITTY PLEASE HELP!

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help the stupid
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#1
Report 17 years ago
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help!

Can anybody tell me if this is correct for my hypothesis,pleaseeeee???

"the lower the concentration of the sugar solution in the test tube the more mass the potato chip will gain. This would be due to the diffusion of water molecules moving from the weak sugar solution or distilled water to the stronger solution (in the potato chip) through the partially permeable membrane, the cell wall. The potatoes in the test tubes with high concentrations of the sugar solution will decrease in size and mass."


or is it the other way round???am totally confused!
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Bhaal85
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#2
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(Original post by help the stupid)
help!

Can anybody tell me if this is correct for my hypothesis,pleaseeeee???

"the lower the concentration of the sugar solution in the test tube the more mass the potato chip will gain. This would be due to the diffusion of water molecules moving from the weak sugar solution or distilled water to the stronger solution (in the potato chip) through the partially permeable membrane, the cell wall. The potatoes in the test tubes with high concentrations of the sugar solution will decrease in size and mass."


or is it the other way round???am totally confused!
Is thatnot osmosis. Where the water moves from a higher concentration of water to the lower end of concentration.
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Bhaal85
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(Original post by help the stupid)
help!

Can anybody tell me if this is correct for my hypothesis,pleaseeeee???

"the lower the concentration of the sugar solution in the test tube the more mass the potato chip will gain. This would be due to the diffusion of water molecules moving from the weak sugar solution or distilled water to the stronger solution (in the potato chip) through the partially permeable membrane, the cell wall. The potatoes in the test tubes with high concentrations of the sugar solution will decrease in size and mass."


or is it the other way round???am totally confused!
I know you get fat pototoes if you leave them in normal water. I did all this in school, so let me think.

OK if you place a potato in a highly concetrated solution, the potaoto will shrink. If you put it in pure water, the water will move into the potato, cause the amount of water in the potato is less. Phew, yeah..I remeber now, its diffusion not osmosis.
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Bhaal85
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(Original post by help the stupid)
help!

Can anybody tell me if this is correct for my hypothesis,pleaseeeee???

"the lower the concentration of the sugar solution in the test tube the more mass the potato chip will gain. This would be due to the diffusion of water molecules moving from the weak sugar solution or distilled water to the stronger solution (in the potato chip) through the partially permeable membrane, the cell wall. The potatoes in the test tubes with high concentrations of the sugar solution will decrease in size and mass."


or is it the other way round???am totally confused!
Sorry, in answer to your question. Yes that is the answer, you have it spot on. :cool:
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nikk
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Hey instead of registering hundreds of different names and starting new threads why not do it all in one thread....
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