The revision guides contain exactly what students need to know for the AQA B exams, with exam-style questions, tips on common pitfalls and lots of sound advice.Water moves along a water potential gradient from root hair cells, across the cortex to the xylem vessels. ac The water potential ... Quick check questions 1 Name the parts of the root labelled A, B and C on the diagram. 2 Explain how a low wateranbsp;...
|Title||:||Revise A2 Biology for AQA A|
|Publisher||:||Heinemann - 2005-11|