Multiple Choice
In the context of passive transport across a selectively permeable membrane, what is the diffusion of water called?
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9. Transport Across Membranes
Passive Transport: Diffusion and Osmosis
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During osmosis across a selectively permeable membrane, which molecule does NOT move across the membrane (assuming only water can pass)?
A
Water molecules
B
Aquaporin channel proteins
C
Solute molecules (e.g., Na and Cl)
D
Phospholipid molecules in the membrane bilayer
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