OSMOSIS/DIFFUSION

Flashcard
•
Biology
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the movement of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.
2.
FLASHCARD QUESTION
Front
What is diffusion?
Back
Diffusion is the process by which molecules spread from an area of high concentration to an area of low concentration until equilibrium is reached.
3.
FLASHCARD QUESTION
Front
What is an isotonic solution?
Back
An isotonic solution is a solution that has the same solute concentration as another solution, resulting in no net movement of water across a semipermeable membrane.
4.
FLASHCARD QUESTION
Front
What happens to a cell in a hypertonic solution?
Back
In a hypertonic solution, water moves out of the cell, causing the cell to shrink.
5.
FLASHCARD QUESTION
Front
What happens to a cell in a hypotonic solution?
Back
In a hypotonic solution, water moves into the cell, causing the cell to swell and potentially burst.
6.
FLASHCARD QUESTION
Front
What is the role of a selectively permeable membrane?
Back
A selectively permeable membrane allows certain molecules to pass through while blocking others, facilitating processes like osmosis and diffusion.
7.
FLASHCARD QUESTION
Front
What is the concentration gradient?
Back
The concentration gradient is the difference in the concentration of a substance between two areas, which drives the movement of molecules during diffusion.
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