Diffusion & Facilitated Diffusion

Flashcard
•
Biology
•
9th - 11th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Passive Transport?
Back
The movement of particles across the membrane from an area of high concentration to an area of low concentration without the use of energy.
2.
FLASHCARD QUESTION
Front
What is the direction of movement in Passive Transport?
Back
From high concentration to low concentration.
3.
FLASHCARD QUESTION
Front
What is net movement?
Back
The number of molecules moving in one direction minus the number of molecules moving in the opposite direction.
4.
FLASHCARD QUESTION
Front
What is required for Facilitated Diffusion?
Back
A membrane-spanning protein to help transport particles across the membrane.
5.
FLASHCARD QUESTION
Front
Does Passive Transport require energy?
Back
No, it does not require energy.
6.
FLASHCARD QUESTION
Front
Give an example of diffusion.
Back
CO2 and O2 exchange in the lungs.
7.
FLASHCARD QUESTION
Front
What is the role of membrane-spanning proteins in Facilitated Diffusion?
Back
They assist in transporting specific molecules across the cell membrane.
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