What is passive transport?
Passive and Active Transport

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•
Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Passive transport is the movement of molecules across a cell membrane without the use of energy, moving from an area of high concentration to an area of low concentration.
2.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the movement of molecules across a cell membrane using energy, moving from an area of low concentration to an area of high concentration.
3.
FLASHCARD QUESTION
Front
Define isotonic solution.
Back
An isotonic solution is a solution where the concentration of solutes is equal inside and outside the cell, resulting in no net movement of water.
4.
FLASHCARD QUESTION
Front
Define hypertonic solution.
Back
A hypertonic solution has a higher concentration of solutes outside the cell than inside, causing the cell to lose water and shrink.
5.
FLASHCARD QUESTION
Front
Define hypotonic solution.
Back
A hypotonic solution has a lower concentration of solutes outside the cell than inside, causing the cell to gain water and swell.
6.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.
7.
FLASHCARD QUESTION
Front
What is facilitated diffusion?
Back
Facilitated diffusion is a type of passive transport that uses protein channels to help move molecules across the cell membrane.
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