Describe4 marksStandard
A student investigated the effect of temperature on the rate of respiration in yeast using the redox indicator DCPIP. Yeast suspensions were mixed with DCPIP and incubated at different temperatures. The time taken for the DCPIP to become colourless was recorded. The results are shown in the table below.
| Temperature (°C) | Decolourisation time (minutes) |
|---|---|
| 10 | 20 |
| 20 | 12 |
| 30 | 7 |
| 40 | 5 |
| 50 | 15 |
Describe the effect of temperature on the rate of respiration in yeast, as indicated by the decolourisation time of DCPIP.