What is osmosis?
Cell Transport Semester Test Review

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•
Biology
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Osmosis is the movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
2.
FLASHCARD QUESTION
Front
Define diffusion.
Back
Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration until equilibrium is reached.
3.
FLASHCARD QUESTION
Front
What does hypotonic mean in relation to cell transport?
Back
A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to enter the cell.
4.
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.
5.
FLASHCARD QUESTION
Front
Explain the term 'selectively permeable membrane'.
Back
A selectively permeable membrane allows certain molecules to pass through while blocking others, maintaining the internal environment of the cell.
6.
FLASHCARD QUESTION
Front
What happens to plant cells in a hypotonic solution?
Back
Plant cells will swell as water enters the cell, creating turgor pressure that helps maintain the plant's structure.
7.
FLASHCARD QUESTION
Front
What is 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.
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