Review Week 2
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What do selectively permeable membranes allow for?
the formation of concentration gradients
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Define passive transport.
the net movement of molecules from high to low concentration
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What is the difference between diffusion and facilitated diffusion?
facilitated diffusion uses transport proteins
(wrong answers:
diffusion uses transport proteins)
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True or false: facilitated diffusion allows for hydrophobic molecules and ions to pass through membranes.
True
(wrong answers:
False )
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What does active transport require?
water
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What is the difference between endocytosis and exocytosis
Endocytosis moves molecules large molecules into the cell, while exocytosis moves them out of the cell
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Define osmolarity
the total solute concentrtaion in a solution
(wrong answers:
the partial solute concentration in a solutio)