Diffusion/Osmosis
Flashcard
•
Biology
•
9th 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 molecules 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 does isotonic mean?
Back
Isotonic refers to a solution that has the same concentration of solutes as another solution, resulting in no net movement of water.
4.
FLASHCARD QUESTION
Front
What is selective permeability?
Back
Selective permeability is the ability of a cell membrane to allow some substances to pass through while blocking others.
5.
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.
6.
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.
7.
FLASHCARD QUESTION
Front
What is a concentration gradient?
Back
A concentration gradient is the difference in the concentration of a substance across a space.
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