1. Cell Processes
7th 15.2 Cell Transport

2. Cells
Selective permeability – cell membrane helps select what enters and what leaves
Diffusion – movement from a high concentration to a low concentration
Equilibrium – molecules of one substance is equal to the molecules of another substance

4. Cells osmosis- diffusion of water through the cell membrane
Facilitated diffusion – exchange of large particles through the cell membrane
Passive Transport – movement of substances through the cell membrane without energy

5. Isotonic Hypertonic Hypotonic

7. Cells
Active transport – energy is required to move substances through the cell membrane
Endocytosis – cell membrane envelopes and substances enter
Exocytosis – cell membrane releases contents outside