Diffusion and Osmosis - intro

Diffusion involves the movement of...

• particles.

• water molecules.

• both particles and water molecules.

Osmosis involves the movement of...

• particles.

• water molecules.

• both particles and water molecules.

What does a partially permeable membrane do?

• It allows all substances to pass through the membrane.

• It only allows some substances to pass through the membrane.

Which of the following can pass through a partially permeable membrane (p.p.m.)?

• particles that are bigger than the pores of the p.p.m.

• particles that are smaller than the pores of the p.p.m.

The blue dots represent ink molecules.

What process is this?

• diffusion

• osmosis

What process does the picture represent and why?

• Diffusion, because the particles are not water molecules.

• Diffusion, because there is no partially permeable membrane present.

• Osmosis, because the particles are water molecules.

• Osmosis, because there is a partially permeable membrane present.

Which molecules moved in this process?

• water molecules

• ink molecules

Tags

NGSS.MS-ESS2-4

What is this process called?

• diffusion

• osmosis

Which side has higher concentration of ink molecules?

• left side

• right side

Tags

NGSS.MS-PS1-2

Which side has higher water potential?

• left side

• right side