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Multiple Choice
How does the amount of solute affect the transport of water across a cell membrane during osmosis?
A
Solute concentration has no effect on water transport.
B
Increasing solute concentration increases water transport.
C
Increasing solute concentration decreases water transport.
D
Water transport is independent of solute concentration.
Verified step by step guidance
1
Understand the concept of osmosis: Osmosis is the movement of water across a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration.
Recognize the role of solute concentration: In osmosis, the concentration of solute affects the direction and rate of water movement. Water tends to move towards the area with higher solute concentration.
Consider the effect of increasing solute concentration: As solute concentration increases on one side of the membrane, the osmotic pressure increases, causing water to move towards the higher concentration area.
Analyze the impact on water transport: Increasing solute concentration decreases the amount of free water molecules available to move across the membrane, thus reducing the rate of water transport.
Conclude the relationship: Therefore, increasing solute concentration decreases water transport across the cell membrane during osmosis, as water moves to balance the solute concentration on both sides.