Understanding:
1.4.U1: Particles move across membranes by simple diffusion, facilitated diffusion, osmosis and active transport.
Objectives:
1.4.U1: Particles move across membranes by simple diffusion, facilitated diffusion, osmosis and active transport.
Objectives:
- Describe simple diffusion.
- Explain two example of simple diffusion of molecules into and out of cells.
- Outline factors that regulate the rate of diffusion.
- Describe facilitated diffusion.
- Describe one example of facilitated diffusion through a protein channel.
- Define osmosis.
- Predict the direction of water movement based upon differences in solute concentration.
- Compare active transport and passive transport.
- Explain one example of active transport of molecules into and out of cells through protein pumps.