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Weight gain of potato section in sucrose concentration

Weight gain of potato section in sucrose concentration - Biology Forum

Weight gain of potato section in sucrose concentration - Biology Forums. Ask questions and discuss the study of Biology. If you have Biology questions from your homework ask them here!


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Old 11-17-2010, 12:23 AM
Pipette Filler
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Default Weight gain of potato section in sucrose concentration



Hello all,

This is my first post here. I'm slightly stuck with the lesson I'm at in Biology, and wondering if you could help me. Here goes.

If my 10g piece of potato has an approx. sucrose concentration of 1.65%, and it is put in a sucrose concentration of 0.1%, (or 2.2% or 4.*%) how do I calculate how much weight it gains? I have the following table to work with, but I'm not sure how much help that is, because there does not seem to be any correlation between the weight gain and the sucrose concentration, due to turgor pressure I suppose.

Beaker Concentration of Sucrose (%) Weight of Potato Cube after 24 Hrs (grams) Percent Change in Mass (%)
1 0.0 13.4 34
2 0.5 12.5 25
3 1.0 11.2 12
4 1.5 10.3 3
5 2.0 9.2 -8
6 2.5 8.5 -15
7 3.0 8.0 -20
8 3.5 7.7 -23
9 4.0 7.5 -25
10 4.5 7.4 -26


Thanks so much!
Sheila
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