| A | B |
| Cell Membrane | Protects, feeds, gets rid of wastes of cell. |
| Diffusion | Movement of molecules from high to low concentrations |
| Osmosis | Diffusion of Water |
| Passive Transport | Requires NO energy to move across cell membrane. Diffusion and Osmosis are examples. |
| Protein Channel | Areas on cell membrane that allow large particles to diffuse WITHOUT using energy. |
| Active Transport | Movement from low concentration to high concentration-needs energy. |
| Endocytosis | Cell membrane "engulfs" large particles. Needs energy from cell to do this process. |
| Exocytosis | Cells expel large particles-needs energy from cell to do this function. |
| Photosynthesis | Process where plants use the energy of the sun to produce sugar/carbohydrates. |
| Glucose | simple carbohydrate/sugar made by plants. |
| Color | How we perceive the energy of light. |
| Pigment | a molecule that absorbs some colors of light and reflects others. |
| Chlorophyll | the main pigment used in photosynthesis. |
| Cellular Respiration | process where chemical bonds of food molecules are converted into ATP energy cells can use. |
| ATP | a molecule that stores and transfers energy within cells. |