Section 1.6 Diffusion Flashcards
1
Q
What is diffusion?
A
Diffusion is the spreading out of particles of a substance in a solution (solute)
2
Q
From which area of concentration does diffusion move to?
A
From an area of high concentration to aa area of low concentration
3
Q
Why does it take place?
A
Because of the random movement of particles
4
Q
What are the factors that affect the rate of diffusion.
A
- Big difference between concentration (concentration gradient) result in a quick rate of diffusion
- Increase of temperature means an increase in the rate of diffusion
- Large surface area also increases the rate of diffusion
5
Q
How can cells adapt to increase the rate of diffusion?
A
By increasing the surface area
6
Q
Examples of diffusion in living organisms.
A
Simple sugars such as glucose, gases such as oxygen, and waste products such as urea move into and out of the cell by diffusion.
