A bean plant has root hair cells, xylem vessels, leaf air spaces and stomata. Water is needed for photosynthesis in its leaves. By which route is this water supplied to a leaf?
Through the stomata, then upwards through the xylem vessels
Through the stomata, then through the leaf air spaces
Into root hair cells, then upwards through the xylem vessels
Into root hair cells, then through the leaf air spaces
68 exam-style questions on AQA GCSE Biology 4.1 Photosynthesis, covering 4.1.1 Photosynthetic reaction, 4.1.2 Rate of photosynthesis, and 4.1.3 Uses of glucose from photosynthesis. Each one has a worked solution and a mark scheme showing where the marks go.