Topics 1-8 for A-Level Edexcel Biology
| Front | What is cell respiration? |
| Back | A chemical process that takes place in all living cells to release energyIt is the chemical breakdown of large molecules, using enzymes, with or without oxygen |
| Front | How is the investigation made valid? |
| Back | Variables should be controlled and repeats carried outUse aseptic technique to prevent contamination with other species of bacteriaUse negative control as a comparison (so we know it's not ethanol inhibiting the growth of bacteria) |
| Front | What repeats should be carried out? |
| Back | 5 repeats for each solution |