B1.6 Diffusion Flashcards

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1
Q

What is diffusion ?

A

Diffusion is the NET movement of particles from a HIGH concentration to a LOW concentration

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2
Q

Where can diffusion take place?

A

In a cell membrane more specifically a partially permeable cell membrane

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3
Q

What is a partially permeable membrane

A

Only allowing some molecules to diffuse through

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4
Q

What type of process is diffusion? What does this mean?

A

Passive process meaning it doesn’t require any energy from the cell

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5
Q

What are the three factors that affect the rate of diffusion ?

A

Concentration: the lager the concentration gradient the higher the rate of diffusion
Temperature: higher temp means particles have more energy so diffuse quicker
Surface area: larger the surface area the higher the rate of diffusion

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