What is diffusion?
Cellular Transport

Flashcard
•
Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The movement of particles through the cell membrane from areas of high concentration to areas of low concentration.
2.
FLASHCARD QUESTION
Front
What is facilitated diffusion?
Back
A process where particles that are too large to enter the membrane use channel proteins to cross, without the use of energy.
3.
FLASHCARD QUESTION
Front
What does isotonic mean?
Back
A state where the concentration of solutes is equal inside and outside the cell.
4.
FLASHCARD QUESTION
Front
What happens to a cell in an isotonic solution?
Back
The cell will stay the same size because the concentration of water and solutes is equal.
5.
FLASHCARD QUESTION
Front
What is active transport?
Back
The movement of particles against their concentration gradient, requiring energy.
6.
FLASHCARD QUESTION
Front
What is passive transport?
Back
The movement of substances across a cell membrane without the use of energy.
7.
FLASHCARD QUESTION
Front
What is osmosis?
Back
The diffusion of water across a selectively permeable membrane.
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