In/Out cells

What is diffusion?

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

In which of the following states can molecules diffuse?

(Select all that apply)

• solid

• liquid

• gas

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 

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

• Amino acids

• Water

• Glucose

• Proteins 

• Starch

List 3 factors affecting diffusion rate

Why does temperature increase rate of diffusion?

Osmosis is a special type of diffusion.

• True

• False

In living organisms, the partially permeable membrane is usually the ___________

• Chloroplast

• Cell membrane

• Nucleus

• Cell wall

Osmosis is the movement of which molecules?

• Any molecule

• Oxygen

• Water

• Hydrogen