★ Cell Bio Quiz
Why do solutes move through protein channels in facilitated diffusion?
A. The solutes are too big or too polar to cross the membrane alone.
B. The solutes are moving from low concentration to high concentration.
C. No molecules can pass straight through the membrane.
D. The solutes have reached equilibrium.
Preview next quiz:
Does this cell have cilia or a flagellum?
A. Cilia
B. Flagellum
C. Neither
D. Both
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