Multiple Choice
Which best describes the difference between osmosis and diffusion?
14. Solutions
Osmosis
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Which of the following statements about osmosis is false?
A
Osmosis can result in the swelling of cells when placed in a hypotonic solution.
B
Osmosis involves the movement of water molecules across a semipermeable membrane.
C
Osmosis requires energy input to occur.
D
Osmosis is a passive transport process.
Verified step by step guidance1
Step 1: Understand the concept of osmosis. Osmosis is the movement of water molecules across a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration.
Step 2: Recognize that osmosis is a passive transport process. This means it does not require energy input, as it relies on the natural movement of molecules down their concentration gradient.
Step 3: Evaluate the statement 'Osmosis requires energy input to occur.' Since osmosis is passive, this statement is false because it contradicts the nature of osmosis.
Step 4: Consider the statement 'Osmosis can result in the swelling of cells when placed in a hypotonic solution.' In a hypotonic solution, the solute concentration outside the cell is lower than inside, causing water to move into the cell, leading to swelling.
Step 5: Review the statement 'Osmosis involves the movement of water molecules across a semipermeable membrane.' This is true, as the semipermeable membrane allows only certain molecules, like water, to pass through.
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