★ 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.
Select your answer:
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Eye in Color Vision › ViewWhat is the role of the optic chiasm in vision?
A. It is where the optic nerves partially cross
B. It focuses light onto the retina
C. It produces the vitreous humor
D. It regulates the amount of light entering the eye
Healthy Lifestyle › View
Which of these foods typically contains the most protein?
A. Cereals with milk
B. A chicken sandwich
C. Chips
D. Lettuce and tomato