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Diffusion of Small Nonpolar Molecules
Grade Level
AP Biology
APB.133 Diffusion of Small Nonpolar Molecules
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A molecule crosses a protein-free artificial bilayer and a natural membrane at similar rates. Which conclusion is most reasonable?
A
The molecule must be a charged ion using a hidden pump.
B
The molecule must be glucose moving through carriers.
C
The molecule is likely small and nonpolar, so proteins are not required.
D
The molecule cannot be crossing by diffusion.
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