What is active transport?
Cell Transport Review

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Biology
•
9th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
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).
2.
FLASHCARD QUESTION
Front
What is passive transport?
Back
Passive transport is the movement of molecules across a cell membrane without the use of energy, moving from an area of higher concentration to an area of lower concentration.
3.
FLASHCARD QUESTION
Front
Define diffusion.
Back
Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration until equilibrium is reached.
4.
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.
5.
FLASHCARD QUESTION
Front
What is an isotonic solution?
Back
An isotonic solution is a solution that has the same concentration of solutes as another solution, resulting in no net movement of water across the cell membrane.
6.
FLASHCARD QUESTION
Front
What is a hypertonic solution?
Back
A hypertonic solution has a higher concentration of solutes compared to another solution, causing water to move out of the cell, leading to cell shrinkage.
7.
FLASHCARD QUESTION
Front
What is a hypotonic solution?
Back
A hypotonic solution has a lower concentration of solutes compared to another solution, causing water to move into the cell, leading to cell swelling.
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