Cell Transport Ob. 2

1. Active Transport: requires ATP

1.1. Passive transport: Examples include facilitated diffusion, simple diffusion and osmosis.

1.1.1. Facilitated Diffusion: Exactly like diffusion only uses carrier/channel proteins to move molecules

1.1.2. Osmosis is diffusion but only deals with WATER

1.1.3. Simple Diffusion high to low concentration.

1.2. Active Transport: An example is the Sodium Potassium Pump that expels sodium and takes in potassium

1.2.1. Endocytosis: bringing IN substances using energy

1.2.2. Exocytosis: Taking out substances using energy

2. Passive Transport: no ATP needed

2.1. Examples include facilitated diffusion, simple diffusion and osmosis.

2.1.1. Osmosis only deals with WATER

2.1.2. Simple Diffusion high to low concentration.

2.1.3. Facilitated Diffusion: uses carrier/channel proteins to move molecules