| A | B |
|---|
| mixture | a combination of substances in which individual substances retain their own properties |
| Organic compounds | always contain carbon and hydrogen and usually are associated with living things |
| enzymes | protein that regulates nearly all chemical reactions |
| inorganic compounds | made from elements other than carbon |
| passive transport | movement of substances through the cell membrane without the input of energy |
| diffusion | type of passive transport in cells in which molecules move from areas where there are more to areas where there are fewer |
| equilibrium | occurs when molecules of one substance are spread evenly throughout another substance |
| osmosis | the diffusion of water through a cell membrane |
| active transport | input of energy is required to move materials through a cell membrane |
| endocytosis | taking substances into a cell by surrounding it with the cell membrane |
| exocytosis | process by which vesicles release their contents outside the cell |
| metabolism | the total of all chemical reactions in an organism |
| photosynthesis | when producers use light energy to make sugars which can be used as food (make sugar) |
| respiration | chemical reactions occur that break down food molecules into simpler substances and release their stored energy (break sugar) |
| fermentation | small amounts of energy released from glucose molecules and produce wastes such as alcohol, carbon dioxide, and lactic acid |
