What is the function of the cell membrane?
Cell Membrane and Transport

Flashcard
•
Biology
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The cell membrane controls the movement of substances in and out of the cell, providing protection and structural support.
2.
FLASHCARD QUESTION
Front
Define Active Transport.
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 (ATP).
3.
FLASHCARD QUESTION
Front
What is Facilitated Diffusion?
Back
Facilitated diffusion is the process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins.
4.
FLASHCARD QUESTION
Front
What does Isotonic mean in terms of solutions?
Back
Isotonic solutions have equal concentrations of solutes on both sides of the membrane, resulting in no net movement of water.
5.
FLASHCARD QUESTION
Front
What happens in a Hypertonic solution?
Back
In a hypertonic solution, the concentration of solutes outside the cell is higher than inside, causing water to move out of the cell, leading to cell shrinkage.
6.
FLASHCARD QUESTION
Front
What is a Hypotonic solution?
Back
A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to move into the cell, potentially leading to cell swelling or bursting.
7.
FLASHCARD QUESTION
Front
What are vesicles?
Back
Vesicles are small compartments enclosed by a membrane that transport materials within the cell during processes like endocytosis and exocytosis.
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