Two cell cultures are kept without oxygen at the same temperature for the same length of time.
Culture A contains rice root cells. Culture B contains trout muscle cells.
| Culture | Glucose broken down in mmol | ATP formed in mmol |
|---|---|---|
| A | 4.0 | 8.0 |
| B | 1.5 | 3.0 |
Which conclusion is supported by the results?
Culture A forms more ATP per mmol of glucose; culture A forms lactic acid, while culture B forms ethanol and carbon dioxide
Both cultures form the same amount of ATP per mmol of glucose; culture A forms ethanol and carbon dioxide, while culture B forms lactic acid
Culture A forms more ATP per mmol of glucose; culture A forms ethanol and carbon dioxide, while culture B forms lactic acid
Both cultures form the same amount of ATP per mmol of glucose; culture A forms lactic acid, while culture B forms ethanol and carbon dioxide
92 exam-style questions on AQA GCSE Biology 4.2 Respiration, covering 4.2.1 Aerobic and anaerobic respiration, 4.2.2 Response to exercise, and 4.2.3 Metabolism. Each one has a worked solution and a mark scheme showing where the marks go.