Paper 6 structured question: Respiration
Paper 6Alternative to PracticalPractical1 marks
Method
Method for Investigating Respiration in Yeast
1. Prepare different concentrations of glucose solution. 2. Add yeast to each solution. 3. Measure the amount of carbon dioxide produced over a set time period.
| Concentration of Glucose (g/L) | Volume of CO2 Produced (mL) |
|---|---|
| 0 | 0 |
| 5 | 10 |
| 10 | 20 |
| 15 | 30 |
| 20 | 40 |
- a[1]
State the independent variable in this investigation.
Aim for approximately 1 distinct marking point.