5 Questions
What is the random movement of particles suspended in a fluid, resulting from collisions with molecules of the fluid?
Brownian Motion
What is the movement of molecules from a higher concentration to a lower concentration until equilibrium is reached?
Diffusion
What type of solution has a higher concentration of solutes than the cell?
Hypertonic
What occurs when a cell is placed in a solution with a lower concentration of solutes than the cell?
Hypotonic
What type of solution has the same concentration of solutes as the cell?
Isotonic
Study Notes
Diffusion and Osmosis
- Brownian motion: the random movement of particles suspended in a fluid, resulting from collisions with molecules of the fluid.
Osmosis
- Diffusion: the movement of molecules from a higher concentration to a lower concentration until equilibrium is reached.
- Hypertonic solution: a solution that has a higher concentration of solutes than the cell.
- Hypotonic solution: a solution that has a lower concentration of solutes than the cell.
- Isotonic solution: a solution that has the same concentration of solutes as the cell.
- Cell in hypotonic solution: water enters the cell, causing it to swell and potentially burst.
- Cell in hypertonic solution: water leaves the cell, causing it to shrink.
Test your knowledge of cell membrane transport processes, including Brownian motion, osmosis, diffusion, and types of solutions.
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