Multiple Choice
In osmosis across a selectively permeable membrane, the net movement of water is always from a region with which condition to a region with the opposite condition?
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9. Transport Across Membranes
Passive Transport: Diffusion and Osmosis
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Which statement best defines osmosis in the context of passive transport across a selectively permeable membrane?
A
The bulk movement of extracellular fluid and dissolved molecules into a cell via vesicle formation.
B
The movement of water across a membrane using ATP-driven pumps to move against the concentration gradient.
C
The diffusion of solute molecules across a selectively permeable membrane from higher solute concentration to lower solute concentration.
D
The diffusion of water molecules across a selectively permeable membrane from lower solute concentration to higher solute concentration.
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