CHECKPOINT: Cell Transport

Flashcard
•
Biology
•
9th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What biomolecule makes up MOST of the cell membrane?
Back
Phospholipids
2.
FLASHCARD QUESTION
Front
How does the cell membrane help maintain homeostasis in each cell?
Back
The cell membrane controls the movement of substances in and out of the cell.
3.
FLASHCARD QUESTION
Front
What is passive transport?
Back
Passive transport is the movement of molecules across the cell membrane without the use of energy, typically from an area of high concentration to an area of low concentration.
4.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the movement of molecules across the cell membrane using energy, typically from an area of low concentration to an area of high concentration.
5.
FLASHCARD QUESTION
Front
What is facilitated diffusion?
Back
Facilitated diffusion is a type of passive transport that uses proteins to help move molecules across the cell membrane.
6.
FLASHCARD QUESTION
Front
What role do proteins play in cell transport?
Back
Proteins can act as channels or pumps to help move substances across the cell membrane.
7.
FLASHCARD QUESTION
Front
What is the lipid bilayer?
Back
The lipid bilayer is a double layer of phospholipids that makes up the cell membrane, providing a barrier to most water-soluble substances.
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