Platforms
Think about the lab procedure you just read. Label each factor below V if it was variable during the procedure or C if it was constant.X C✔ Vmolecule size (large starch molecules vs. small glucose molecules)
✔ CX Vmaterial used as the membrane
material to diffuse is the independent✔ dependent variable.
✔ CVnumber of trials
X C✔ Vwhether the molecules diffused through the membrane (tubing)
Select all steps below that help you handle chemicals safely.
✔ CVamount of substances used
Now label the variables: Molecule size is the ✔ independentdependent variable. The ability of the
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Lab: Diffusion Across a Semi-permeable Membrane
Instruction