What is diffusion?
Cell Transport

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Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
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 diffusion of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.
3.
FLASHCARD QUESTION
Front
What is passive transport?
Back
Passive transport is the movement of substances across a cell membrane without the use of energy, typically through diffusion or osmosis.
4.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the movement of substances against their concentration gradient, requiring energy (ATP) to move molecules from low to high concentration.
5.
FLASHCARD QUESTION
Front
What is a selectively permeable membrane?
Back
A selectively permeable membrane is a barrier that allows certain substances to pass through while blocking others.
6.
FLASHCARD QUESTION
Front
What happens to a cell in a hypertonic solution?
Back
In a hypertonic solution, water moves out of the cell, causing it to shrink.
7.
FLASHCARD QUESTION
Front
What happens to a cell in a hypotonic solution?
Back
In a hypotonic solution, water moves into the cell, causing it to swell and potentially burst.
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