Active Transport

Flashcard
•
Science
•
9th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the movement of particles across a cell membrane from a region of lower concentration to a region of higher concentration, using energy in the form of ATP.
2.
FLASHCARD QUESTION
Front
What is passive transport?
Back
Passive transport is the movement of particles across a cell membrane without the use of energy, typically from a region of higher concentration to a region of lower concentration.
3.
FLASHCARD QUESTION
Front
What is the main difference between active and passive transport?
Back
Active transport requires energy (ATP) to move substances against their concentration gradient, while passive transport does not require energy and moves substances along their concentration gradient.
4.
FLASHCARD QUESTION
Front
What role does ATP play in active transport?
Back
ATP provides the energy required for active transport to move substances against their concentration gradient.
5.
FLASHCARD QUESTION
Front
Give an example of active transport in cells.
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.
6.
FLASHCARD QUESTION
Front
What is diffusion?
Back
Diffusion is the process by which molecules spread from an area of high concentration to an area of low concentration until equilibrium is reached.
7.
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.
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