Cells: Osmosis, Diffusion, Size

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Biology
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the movement of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.
2.
FLASHCARD QUESTION
Front
What is diffusion?
Back
Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration until equilibrium is reached.
3.
FLASHCARD QUESTION
Front
What is a hypotonic solution?
Back
A hypotonic solution has a lower concentration of solutes compared to the inside of a cell, causing water to enter the cell and potentially make it swell or burst.
4.
FLASHCARD QUESTION
Front
What is a hypertonic solution?
Back
A hypertonic solution has a higher concentration of solutes compared to the inside of a cell, causing water to leave the cell and making it shrink.
5.
FLASHCARD QUESTION
Front
What is an isotonic solution?
Back
An isotonic solution has the same concentration of solutes as the inside of a cell, resulting in no net movement of water into or out of the cell.
6.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy (ATP).
7.
FLASHCARD QUESTION
Front
What is passive transport?
Back
Passive transport is the movement of molecules across a cell membrane without the use of energy, typically occurring through diffusion or osmosis.
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