What is the primary function of the cell membrane?
cell membrane

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Biology
•
11th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The cell membrane controls what enters and leaves the cell, maintaining homeostasis.
2.
FLASHCARD QUESTION
Front
What is the structure of the cell membrane?
Back
The cell membrane is primarily composed of a phospholipid bilayer with embedded proteins.
3.
FLASHCARD QUESTION
Front
What does it mean for the cell membrane to be semipermeable?
Back
Semipermeable means that the cell membrane allows certain substances to pass through while blocking others.
4.
FLASHCARD QUESTION
Front
What are channel proteins?
Back
Channel proteins are integral membrane proteins that facilitate the transport of ions and molecules across the cell membrane.
5.
FLASHCARD QUESTION
Front
What is passive transport?
Back
Passive transport is the movement of particles across the membrane from an area of high concentration to an area of low concentration without the use of energy.
6.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the movement of particles against their concentration gradient, requiring energy (ATP) to do so.
7.
FLASHCARD QUESTION
Front
What is endocytosis?
Back
Endocytosis is a type of active transport where the cell membrane engulfs particles to form a vesicle and bring them into the cell.
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