What is diffusion?
Cellular Transport

Flashcard
•
Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration.
2.
FLASHCARD QUESTION
Front
In which direction do molecules move during diffusion?
Back
Molecules move from higher concentration to lower concentration.
3.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the diffusion of water molecules across a selectively permeable membrane.
4.
FLASHCARD QUESTION
Front
What does selectively permeable mean?
Back
Selectively permeable means that a membrane allows some substances to pass through while blocking others.
5.
FLASHCARD QUESTION
Front
What is the difference between active transport and passive transport?
Back
Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy.
6.
FLASHCARD QUESTION
Front
What is an isotonic solution?
Back
An isotonic solution is one where the concentration of solutes is the same inside and outside the cell, resulting in no net movement of water.
7.
FLASHCARD QUESTION
Front
What happens to a cell in a hypotonic solution?
Back
In a hypotonic solution, water moves into the cell, causing it to swell and potentially burst.
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