We can test the relative permeability of a phospholipid bilayer by using a synthetic membrane that does not contain any protein components.Some uncharged, polar molecules are found to diffuse freely across these membranes, to varying degrees.Which of the following has the lowest rate of diffusion across an artificial membrane? Why?

Question

Quizplus · Accepted Answer

Glucose will have a negligible degree of diffusion across the synthetic bilayer.Not only is it polar, it is also larger than other molecules that are able to diffuse across the membrane.

We Can Test the Relative Permeability of a Phospholipid Bilayer