What is Active Transport?
Passive vs Active Transport

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•
Biology, Other
•
9th - 12th 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 in the form of 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, occurring from a region of higher concentration to a region of lower concentration.
3.
FLASHCARD QUESTION
Front
What is Osmosis?
Back
Osmosis is the passive transport of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
4.
FLASHCARD QUESTION
Front
What is Diffusion?
Back
Diffusion is the passive movement of particles from an area of higher concentration to an area of lower concentration until equilibrium is reached.
5.
FLASHCARD QUESTION
Front
What does 'against the concentration gradient' mean?
Back
'Against the concentration gradient' refers to the movement of molecules from an area of lower concentration to an area of higher concentration, which requires energy (active transport).
6.
FLASHCARD QUESTION
Front
What is the role of ATP in Active Transport?
Back
ATP provides the energy required for active transport processes to move substances against their concentration gradient.
7.
FLASHCARD QUESTION
Front
Give an example of Active Transport.
Back
An example of active transport is the sodium-potassium pump, which moves sodium ions out of the cell and potassium ions into the cell against their concentration gradients.
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