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Diffusion
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Total cards: 5•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (5)
#1
Front (Question)
What is diffusion?
Back (Answer)
The spreading out of molecules from a region of high concentration to a region of low concentration
#2
Front (Question)
Give two examples of diffusion in plants
Back (Answer)
Carbon dioxide diffusing into a leaf Oxygen diffusing out of a leaf
#3
Front (Question)
Give two examples of diffusion in humans
Back (Answer)
Oxygen diffusing from the blood into a cell Carbon dioxide diffusing out of a cell
#4
Front (Question)
Is diffusion passive or active?
Back (Answer)
It is passive
#5
Front (Question)
Why is diffusion said to be passive?
Back (Answer)
The movement of molecules in diffusion does not need external energy