keegan0321 Posted November 30, 2008 Report Share Posted November 30, 2008 hello i am doing the creative lab thing comparing potato and sweet potato's osmosis but... i dont know how to write the conclusion so yea um...do u guys have any info on potato and sweet potato? my propose is Compare the sweet potato and the potato’s mass percentage difference in the same solute concentration. How will this difference differ in other solute concentrations? is there any info?? on this?? i put down like potato is a starchy crop, therefore contain more starch than sweet potato... so weird thankssss Reply Link to post Share on other sites More sharing options...
moneyfaery Posted November 30, 2008 Report Share Posted November 30, 2008 Talk about their different salt/sugar concentrations and why/how this relates to the results you obtained in the lab. Can you also find literature values supporting your argument? Don't forget sources of error and improvements. Reply Link to post Share on other sites More sharing options...
Hedron123 Posted November 30, 2008 Report Share Posted November 30, 2008 (edited) Remember that starch is insoluble in water so it does not exert any osmotic pressure. I think that the sweet potato has a higher solute concentration (mainly sugars) so that is the reason for it being sweet. As the potato has a higher water potential, it will lose more water through osmosis so its mass will change more than the sweet potato. Edited November 30, 2008 by Hedron123 Reply Link to post Share on other sites More sharing options...
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