What is active transport?
Biology: Cell Transport: Kahoot

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Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Active transport is the process by which cells use energy to move ions or molecules against their concentration gradient, from an area of lower concentration to an area of higher concentration.
2.
FLASHCARD QUESTION
Front
What is passive transport?
Back
Passive transport is the movement of ions or molecules across a cell membrane without the use of energy, typically moving down their concentration gradient.
3.
FLASHCARD QUESTION
Front
What is facilitated diffusion?
Back
Facilitated diffusion is a type of passive transport that uses carrier proteins to help move substances across the cell membrane down their concentration gradient.
4.
FLASHCARD QUESTION
Front
What is the sodium-potassium pump?
Back
The sodium-potassium pump is an active transport mechanism that moves sodium ions out of the cell and potassium ions into the cell, essential for maintaining cellular function.
5.
FLASHCARD QUESTION
Front
What happens during osmosis?
Back
Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
6.
FLASHCARD QUESTION
Front
What is the role of receptor proteins in cell signaling?
Back
Receptor proteins bind to signal molecules, triggering a response inside the cell, which can include activating second messengers, changing cell permeability, or initiating enzyme activity.
7.
FLASHCARD QUESTION
Front
What is concentration gradient?
Back
A concentration gradient is the difference in the concentration of a substance across a space, which drives the movement of substances during diffusion or active transport.
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