| A | B |
|---|
| purpose of cell respiration | plants and animals use respiration to burn food and use the energy to function |
| glucose and oxygen = | carbon dioxide and water and energy |
| ATP | respiration :food is broken down in the mitochondria |
| energy released converts ADP to | ATP |
| How many stages of respiration in glucose | 2 |
| What happens in stage 1 | Glucose is broken down into small molecules in cytoplasm |
| What happens in Stage 2 | small molecules react with oxygen in mitochodria - make carbon dioxide and water |
| fermentation | without oxygen, break down of food stops in cytoplasm |
| fermentation in humans | small molecules become lactic acid |
| fermentation in yeast | small molecules become alcohol and CO2 |
