| A | B |
| Diffusion | movement of molecules from high to lowe concentration |
| Osmosis | movement of water molecules from high to low concentration |
| Active Transport | movement of molecules from low to high concentration using energy |
| Passive Transport | Includes diffusion and osmosis, no energy used, downhill |
| Neuron ion pumps | use active transport to pump ions out of the neuron |
| Protein channels | allow for diffusion of big molecules through the cell membrane |
| Homeostasis | maintaining an internal balance compared to outside; ex: body temp, glucose |
| Kidney | organ that miantins homeostasis by filtering blood (water and toxin balance) |
| Endocrine system | maintains homeostasis by releaseing hormones to control body |
| Pancreas | releases insulin, which controls blood glucose levels (homeostasis) |