Cell Membrane
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the main function of the cell membrane?
Back
The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.
2.
FLASHCARD QUESTION
Front
What is a phospholipid?
Back
A phospholipid is a molecule that makes up the cell membrane, consisting of a hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.
3.
FLASHCARD QUESTION
Front
What does 'selectively permeable' mean in relation to the cell membrane?
Back
It means that the cell membrane allows certain substances to pass through while blocking others.
4.
FLASHCARD QUESTION
Front
What is the role of cholesterol in the cell membrane?
Back
Cholesterol helps to stabilize the cell membrane's structure and fluidity.
5.
FLASHCARD QUESTION
Front
What is diffusion?
Back
Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.
6.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the diffusion of water across a selectively permeable membrane.
7.
FLASHCARD QUESTION
Front
What happens to a cell in a hypotonic solution?
Back
A cell in a hypotonic solution will swell and may burst due to water entering the cell.
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