Carrot cells are grown in two vessels containing nutrient solution.
The cells in vessel R receive oxygen and break down 0.8 mmol of glucose aerobically. For each 1 mmol of glucose broken down aerobically, enough energy is transferred to make about 30 mmol of ATP.
The cells in vessel S receive no oxygen. For each 1 mmol of glucose broken down anaerobically, enough energy is transferred to make about 2 mmol of ATP.
How many millimoles of glucose must the cells in vessel S break down to make the same amount of ATP as the cells in vessel R?
48 mmol
1.6 mmol
12 mmol
24 mmol
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.