A gardener records the temperature in the centre of a compost heap containing many living microorganisms and in the air beside the heap.
| location | temperature at the start in °C | temperature after 24 hours in °C |
|---|---|---|
| centre of compost heap | 18 | 27 |
| air beside compost heap | 18 | 19 |
Which conclusion is supported by these results?
Respiration kept all the transferred energy within the microorganisms.
Respiration transferred energy from the surroundings into the microorganisms.
The rise in temperature caused the microorganisms to start respiring.
Respiration transferred energy from the microorganisms to their surroundings.
98 exam-style questions on Edexcel GCSE Biology 8.3 Respiration, covering 8.3.1 Aerobic and anaerobic respiration. Each one has a worked solution and a mark scheme showing where the marks go.