1. DO NOW
Name the three particles in an atom and their associated charges?
Where is the majority of the mass of an atom? Which particles compose this mass?
Describe the difference between an ionic and a covalent bond?

2. Cell Transport
Passive Transport: movement of materials across the membrane without the use of energy
Active Transport movement of materials across the membrane with the use of energy

3. Cell Transport Passive Transport:
Diffusion: movement of high concentration to low concentration
Facilitated Diffusion: movement of high concentration to low concentration using protein channels
Osmosis: the movement of water across a selectively permeable membrane

4. Cell Transport Active Transport:
Protein Pumps: chemical energy uses “pumps” to move ions across the membrane
Endocytosis: moves particle into the cell
Exocytosis: moves particle out the cell