| A | B |
|---|
| metabolism | all chemical reactions |
| autotrophs | makes own food |
| enzymes | regulates chemical reactions |
| cell membrane | controls what goes in and out of cell |
| semi-permeable | allows some things in and out while not others |
| lipids | organic compound group that makes up the cell membrane |
| carbohydrates | examples are starches and sugars |
| proteins | builds cell structures |
| nucleic acids | DNA and RNA |
| diffusion | random movement of molecules from high to low concentrations |
| osmosis | diffusion of water across the membrane |
| active transport | moving molecules from low to high concentrations |
| vesicle | transport and storage vehicle found in the cell's cytoplasm |
| endocytosis | movement of bacteria into the cell |
| exocytosis | movement of large waste products out of the cell |
| heterotrophs | cannot make their own food |
| photosynthesis | process of absorbing light energy to make glucose |
| respiration | process of breaking down glucose to create chemical energy (ATP) |
| fermentation | process of using stored energy when oxygen supplies are low |
| element | made up of only one atom |
| compound | made up of two or more elements |
| mixture | type of matter with changing composition |
| matter | anything that has mass and takes up space |
| heterogeneous mixture | looks different; can be separated |
| homogeneous mixture | looks same; cannot separate |
| solute | part of the solution that dissolves |
| solvent | part of the solution that does the dissolving |
| homeostasis | condition in which the external and internal parts of the cell are balanced |
