| A | B |
|---|
| breaks down sugar using oxygen | respiration |
| first step of both respiration and fermentation | glycolysis |
| breaking down sugar without oxygen | fermentation |
| sometimes a by-product of fermentation | lactic acid |
| the making of glucose | photosynthesis |
| requires water and carbon dioxide | photosynthesis |
| biological catalyst | enzyme |
| energy required to start a chemical reaction | activation energy |
| reaction that releases energy | exothermic |
| reaction that consumes energy | endothermic |
| any substance that speeds up a chemical reaction | catalyst |
| an enzyme acts of this | substrate |
| adenosine triphosphate | ATP |
| the main energy carrying molecule produced by respiration | ATP |
| green pigment involved in photosynthesis | chlorophyll |
| part of a cell where photosynthesis occurs | chloroplast |
| part of a cell where respiration occurs | mitochondrion |
| stage of photosynthesis that makes ATP | light reactions |
| part of photosynthesis where glucose is made | Calvin cycle |
| breaks glucose into 2 pyruvates (pyruvic acids) | glycolysis |
| end stage of respiration | Krebs cycle |
