Question

Conclusion: Starch has a larger molecule size than glucose. So you can conclude that larger molecules are
likely than smaller molecules to diffuse across a semipermeable membrane.

Answer 1

That conclusion is reversed. Larger molecules are less likely than smaller molecules to diffuse across a semipermeable membrane.

Corrected conclusion:
- Because starch molecules are much larger than glucose molecules, starch is unlikely to pass through the pores of a semipermeable membrane, whereas glucose (a small sugar) is much more likely to diffuse through.

Why:
- Semipermeable membranes act as size (and sometimes charge/solubility) filters: small solutes can pass through pores or channels, large polymers cannot.
- Example: in a dialysis-tubing experiment, iodine (small) diffuses into the tubing and reacts with starch inside, but the starch stays inside because its molecules are too large to pass through the tubing pores.
- Note: in biological membranes, other factors (lipid solubility, charge, and specific transport proteins) also determine whether a molecule crosses; glucose often requires transport proteins rather than simple diffusion.

If you want, I can reword your original sentence into a correct, concise conclusion suitable for a lab report.