Diffusion and Osmosis
Flashcard
•
Biology
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is diffusion?
Back
Diffusion is the movement of particles from an area of high concentration to an area of low concentration until equilibrium is reached.
2.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the movement of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.
3.
FLASHCARD QUESTION
Front
What happens to cells in a hypertonic solution?
Back
Cells will shrink or dehydrate because water moves out of the cell.
4.
FLASHCARD QUESTION
Front
What happens to cells in a hypotonic solution?
Back
Cells will expand or swell because water moves into the cell.
5.
FLASHCARD QUESTION
Front
What is a selectively permeable membrane?
Back
A selectively permeable membrane allows certain molecules to pass through while blocking others.
6.
FLASHCARD QUESTION
Front
What is the main driving force behind diffusion?
Back
The main driving force behind diffusion is the concentration gradient.
7.
FLASHCARD QUESTION
Front
What is equilibrium in the context of diffusion?
Back
Equilibrium is the state where the concentration of particles is equal throughout a space.
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