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Questions and Answers
Which of the following best describes diffusion?
Which of the following best describes diffusion?
- The movement of water molecules across a membrane
- The diffusion of glucose molecules into a cell
- The net movement of particles from an area of higher concentration to an area of lower concentration (correct)
- The movement of particles from an area of lower concentration to an area of higher concentration
What is osmosis?
What is osmosis?
- The diffusion of water molecules (correct)
- The movement of particles from an area of lower water concentration to an area of higher water concentration
- The movement of glucose molecules across a membrane
- The movement of particles from an area of higher concentration to an area of lower concentration
What is the relationship between diffusion and osmosis?
What is the relationship between diffusion and osmosis?
- Diffusion and osmosis are unrelated processes
- Osmosis is the opposite of diffusion
- Diffusion is a type of osmosis
- Osmosis is a type of diffusion (correct)
What does the term 'water concentration' refer to in the context of osmosis?
What does the term 'water concentration' refer to in the context of osmosis?
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Why is osmosis considered a special case of diffusion?
Why is osmosis considered a special case of diffusion?
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Study Notes
Diffusion and Osmosis
- Diffusion is the random movement of molecules from an area of higher concentration to an area of lower concentration, resulting in uniform distribution.
- Osmosis is the movement of water molecules from an area of higher concentration to an area of lower concentration through a selectively permeable membrane.
- Diffusion and osmosis are related, as osmosis is a special case of diffusion that involves the movement of water molecules.
- Water concentration refers to the amount of dissolved substances in a solution, with a higher concentration indicating more dissolved substances and a lower concentration indicating fewer dissolved substances.
- Osmosis is considered a special case of diffusion because it involves the movement of water molecules only, whereas diffusion involves the movement of any molecule or ion.
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Description
Test your knowledge of osmosis, water concentration, and diffusion in cells with this quiz. Brush up on the basics and see how well you understand these concepts.
