Osmosis and Diffusion
Flashcard
•
Biology
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
2.
FLASHCARD QUESTION
Front
What is diffusion?
Back
Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration until equilibrium is reached.
3.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the process of moving molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.
4.
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.
5.
FLASHCARD QUESTION
Front
What happens when equilibrium is reached in diffusion?
Back
When equilibrium is reached, molecules continue to move in both directions across the membrane, but the overall concentration remains constant.
6.
FLASHCARD QUESTION
Front
What role does the cell membrane play in osmosis and diffusion?
Back
The cell membrane regulates the movement of materials into and out of the cell, facilitating osmosis and diffusion.
7.
FLASHCARD QUESTION
Front
What is the difference between osmosis and diffusion?
Back
Osmosis specifically refers to the movement of water, while diffusion refers to the movement of any type of particles.
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