Cells in solution
Water potential
Potato lab
Practice
sucrose in the beaker
0.80 mol dm⁻³
how to name the solution
hypotonic · isotonic · hypertonic
more dilute · more concentrated
water molecules crossing
sucrose molecules
name the parts
cell A: solute potential
−1200 kPa
cell A: pressure potential
+800 kPa
cell B: solute potential
−1500 kPa
cell B: pressure potential
+600 kPa
A fully turgid
A at incipient plasmolysis
no pressure in either
same ψ, different parts
0.0
0.2
0.4
0.6
0.8 mol dm⁻³
isotonic marker
0.45 mol dm⁻³
line of best fit
New sample of potato
Check my marker
a red blood cell and a plant cell in one beaker
press Run to soak them
1
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Answer
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Hint
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How to think about it
Common mistakes