| A | B |
|---|
| enzyme | molecule that speeds up reactions |
| substrate | molecules broken down or put together by enzymes |
| product | molecule or molecules the substrate is turned into after the reaction |
| active site | spot on the enzyme where the substrate fits |
| denaturation | changing shape of an enzyme |
| inhibitor | molecule that blocks the active site of an enzyme |
| factors causing denaturation | high temperature or wrong pH |
| osmosis | diffusion of water |
| simple diffusion | molecules move from higher to lower concentration between the phospholipids |
| facilitated diffusion | molecules move from higher to lower concentration througha protein channel |
| endocytosis | used to bring very large molecules in |
| exocytosis | used to take very large molecules out |
| active transport | cell uses energy to move substances from lower to higher concentrations using a protein channel |
| why molecules diffuse | they have their own energy |
