Plant root cells take in mineral ions from the soil by active transport. Active transport needs energy from respiration.
When soil is flooded, the air spaces between the soil particles fill with water.
Explain why the root cells of a plant in flooded soil respire anaerobically.
Name the two products of anaerobic respiration in plant root cells.
Explain why plants growing in flooded soil take in fewer mineral ions.
Suggest why plants that grow in flooded soil for a long time may die.
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.