| A | B |
|---|
| diffusion | The movement of molecules from areas where there are more of them to areas where there are fewer of them. |
| equilibrium | The molecules of one substance are spread evenly throughout another substance.(equal) |
| osmosis | The diffusion of water through a cell membrane. |
| passive transport | The movement of substances through the cell membrane without the use of cellular energy. |
| active transport | Enery-requiring movement of substances through a cell membrane. |
| endocytosis | Large particles enter the cell; occurs when the cell membrane folds in on itself & encloses large particles in a sphere, which pinches off, allowing the vacuole to enter the cytoplasm. |
| exocytosis | Large particles leave the cell; occurs when vesicles & vacuoles fuse with the cell membrane & release their contents outside the cell. |
| metabolism | The total of all chemical reactions in an organism. |
| producers | Organisms that make their own food, such as plants. |
| consumers | Organisms that CAN'T make their own food. |
| fermentation | The release of energy from glucose when oxygen is not available |
| photosynthesis | Producers use it to make their own food. |
| respiration | Organisms (producers & consumers) use it to release energy stored in food molecules |
| selectively permeable | To allow only certain things into or out of a cell. |
