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Questions and Answers
What is the process called when molecules move from a region of high concentration to a region of low concentration until it is evenly distributed?
What is the process called when molecules move from a region of high concentration to a region of low concentration until it is evenly distributed?
- Osmosis
- Diffusion (correct)
- Evaporation
- Condensation
Which molecules can pass through a cell membrane fairly easily according to the text?
Which molecules can pass through a cell membrane fairly easily according to the text?
- Water (H2O) (correct)
- Sodium chloride (NaCl)
- Nitrogen (N2)
- Carbon monoxide (CO)
In diffusion, molecules move from a region with __________ concentration to a region with __________ concentration.
In diffusion, molecules move from a region with __________ concentration to a region with __________ concentration.
- higher, lower
- low, high
- high, low (correct)
- equal, unequal
What is the effect of a difference in concentration on molecules entering a cell through diffusion?
What is the effect of a difference in concentration on molecules entering a cell through diffusion?
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Which of the following is NOT a substance that can pass through the cell membrane easily according to the text?
Which of the following is NOT a substance that can pass through the cell membrane easily according to the text?
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What is the main role of diffusion in equalizing the concentration of molecules inside and outside a cell?
What is the main role of diffusion in equalizing the concentration of molecules inside and outside a cell?
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