What is passive transport?
Bio Unit 2-Cell Membrane and Transport

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Science
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Passive transport is the movement of molecules across a cell membrane without the use of energy, typically moving from an area of high concentration to an area of low concentration.
2.
FLASHCARD QUESTION
Front
What happens to a cell in a hypotonic solution?
Back
In a hypotonic solution, water enters the cell, causing it to swell and potentially burst due to the increased internal pressure.
3.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.
4.
FLASHCARD QUESTION
Front
What role do glycolipids and glycoproteins play in the cell membrane?
Back
Glycolipids and glycoproteins act as the cell's identification and communication system, helping cells recognize each other and interact.
5.
FLASHCARD QUESTION
Front
What is the concentration gradient?
Back
The concentration gradient is the difference in the concentration of a substance across a space, which drives the movement of molecules from high to low concentration.
6.
FLASHCARD QUESTION
Front
What occurs during active transport?
Back
Active transport is the movement of molecules against their concentration gradient, requiring energy (usually in the form of ATP) to move substances from low to high concentration.
7.
FLASHCARD QUESTION
Front
What is a hypertonic solution?
Back
A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, causing water to leave the cell and resulting in cell shrinkage.
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