Multiple Choice
Which of the following statements about osmosis is correct?
14. Solutions
Osmosis
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How is osmosis different from simple diffusion?
A
Osmosis can occur with any type of molecule, while simple diffusion is limited to water molecules.
B
Osmosis moves solutes from high to low concentration, while simple diffusion moves solutes from low to high concentration.
C
Osmosis involves the movement of water across a semipermeable membrane, while simple diffusion does not require a membrane.
D
Osmosis requires energy input, whereas simple diffusion is a passive process.
Verified step by step guidance1
Begin by understanding the concept of osmosis: it is the movement of water molecules across a semipermeable membrane from an area of low solute concentration to an area of high solute concentration.
Contrast osmosis with simple diffusion: simple diffusion is the movement of molecules from an area of high concentration to an area of low concentration, and it does not require a membrane.
Recognize that osmosis specifically involves water molecules, whereas simple diffusion can involve any type of molecules.
Note that osmosis is a passive process, meaning it does not require energy input, similar to simple diffusion.
Understand that the key difference is the requirement of a semipermeable membrane in osmosis, which is not necessary for simple diffusion.
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