Multiple Choice
How is osmosis different from diffusion?
14. Solutions
Osmosis
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Which of the following statements is true regarding osmosis?
A
Osmosis is the movement of water molecules from a region of higher solute concentration to a region of lower solute concentration.
B
Osmosis requires energy input to occur.
C
Osmosis is the movement of water molecules through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration.
D
Osmosis involves the movement of solute molecules across a semipermeable membrane.
Verified step by step guidance1
Understand the concept of osmosis: Osmosis is a type of passive transport, which means it does not require energy input. It involves the movement of water molecules across a semipermeable membrane.
Identify the direction of water movement in osmosis: Water molecules move from a region of lower solute concentration to a region of higher solute concentration. This is because water moves to balance the concentration of solutes on both sides of the membrane.
Clarify the role of the semipermeable membrane: A semipermeable membrane allows only certain molecules, like water, to pass through while blocking others, such as solute molecules.
Evaluate the given statements: Compare each statement with the correct definition of osmosis. The correct statement should reflect the movement of water molecules through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration.
Conclude by identifying the correct statement: Based on the understanding of osmosis, determine which statement accurately describes the process, focusing on the movement of water and the role of the semipermeable membrane.
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