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The first stage of treatment at a reverse osmosis plant is to flow the water through rock, sand, and gravel as shown here. Would this step remove particulate matter? Would this step remove dissolved salts?
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14. Solutions
Osmosis
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Which of the following statements about osmosis is correct?
A
Osmosis occurs only in non-living systems.
B
Osmosis is the movement of solvent molecules through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration.
C
Osmosis requires energy in the form of ATP to occur.
D
Osmosis is the movement of solute molecules from a region of lower concentration to a region of higher concentration.
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Identify the key concept: Osmosis is a process involving the movement of solvent molecules, not solute molecules.
Understand the direction of movement: In osmosis, solvent molecules move from a region of lower solute concentration to a region of higher solute concentration.
Recognize the role of the semipermeable membrane: Osmosis occurs through a semipermeable membrane that allows only certain molecules, typically solvent molecules, to pass through.
Clarify the energy requirement: Osmosis is a passive process and does not require energy in the form of ATP.
Evaluate the statements: Compare each statement with the correct definition of osmosis to determine which one accurately describes the process.
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