| A | B |
|---|
| Active Transport | energy requiring movement of substances through a cell membrane |
| producer | organism, such as green plant, that makes it own food |
| diffusion | movement of molecules from areas where there are more of them to areas where there are fewer of them |
| endocytosis | process in which substances too large to cross the cell membrane enter the cell; occurs when the cell membrane folds in on itself and encloses the large particles in a shpere, which pinches off, allowing the vacuole to enter the cytoplasm. |
| enzymes | specific proteins that regulate almost all chemical reactions in cell without being changed themselves |
| equilibrium | state in which the molecules of a substance are evenly distributed throughout another substances |
| exocytosis | process in which large particles leave the cell; occurs when vesicles and vacuoles fuse with the cell membrane and release their contents outside the cell |
| fermentation | form of respiration without oxygen; releases only part of the energy in food |
| inorganic compounds | most compounds made from elements other than carbon; for example, water, which makes up a large part of living matter |
| ions | electrically charged particles, both positive and negative |
| metabolism | total of all chemical reatcions in a living thing |
| mixture | combination of substances in which each substance retains its own properties |
| organic compounds | most compounds that contain carbon four groups make up living things: carbohydrates, lipids, proteins, and nucleic acids |
| osmosis | diffusion of water through a cell membrane |
| passive transport | movement of substances through a cell membrane without the use of cellular energy |
| consumer | organism that can't make its own food |
