| A | B |
| chemical reaction | bonds between atoms are broken and new bonds are formed |
| carbohydrates | provide the cell with energy |
| lipids | fats, oils, and waxes found in living things |
| proteins | made of smaller molecules called amino acids |
| nucleic acids | molecules that hold instructions for maintenance, growth, and reproduction of a cell |
| chemical energy | energy stored in the bonds between atoms of every molecule |
| glucose | major energy source for all cells; cell food |
| photosynthesis | plants use to change sunlight into chemical energy |
| Chlorophyll | traps the energy in sunlight` |
| cellular respiration | cells use oxygen to release energy stored in glucose |
| fermentation | cells release energy without oxygen |
| diffusion | molecules spread out - move from lots to few |
| passive transport | materials move without energy |
| osmosis | diffusion of water through a membrane |
| active transport | using energy to move materials through a membrane |
| endocytosis | moves large materials INTO a cell |
| exocytosis | moves large molecules OUT of a cell |
| Cell respiration | Uses glucose, requires oxygen, happens in Mitochondria, Chemical Energy is released |
| Fermentation | No oxygen required, releases energy, happens in the cytoplasm, |