Welcome to the Quiz!

This quiz contains 9 questions from a mix of 1 subtopics.

Diffusion is the net movement of particles from an area of concentration to an area of concentration. 

higher
lower

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2

Diagram showing diffusion direction between area A and area B with particles moving from high to low concentration.

In which direction will diffusion take place between area A and area B?

From area A to area B

From area B to area A

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1

True or false? If molecules are left alone they'll move around randomly.

True

False

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1

In which of the following states can molecules diffuse?

(Select all that apply)

Liquid

Solid

Gas

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2

Cell membranes are said to be 'partially permeable'. What does this mean?

No molecules can pass through the membrane 

Only some molecules can pass through the membrane

Any molecule can pass through the membrane 

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1

Which molecules are able to diffuse into and out of cells?

Glucose

Water

Starch

Proteins 

Amino acids

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3

List three factors that affect the rate of diffusion.

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3

Will a larger surface area increase or decrease the rate of diffusion?

Increase 

Decrease 

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1

Why does a higher temperature increase the rate of diffusion?

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2