What is simple diffusion?
Cell Transport

Flashcard
•
Biology
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Simple diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration without the use of energy or transport proteins.
2.
FLASHCARD QUESTION
Front
What happens to a cell in a hypotonic solution?
Back
A cell in a hypotonic solution will swell and may burst (lyse) due to the influx of water.
3.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the movement of particles against their concentration gradient, requiring energy (usually in the form of ATP).
4.
FLASHCARD QUESTION
Front
What occurs to a freshwater fish cell in saltwater?
Back
The cell would shrivel because the saltwater solution is hypertonic, causing water to leave the cell.
5.
FLASHCARD QUESTION
Front
What is facilitated diffusion?
Back
Facilitated diffusion is the process of transporting molecules across a cell membrane via protein channels, without the use of energy.
6.
FLASHCARD QUESTION
Front
Define osmosis.
Back
Osmosis is the diffusion of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
7.
FLASHCARD QUESTION
Front
What is a hypertonic solution?
Back
A hypertonic solution has a higher concentration of solutes compared to another solution, leading to water moving out of cells placed in it.
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