A student is given cress seeds, damp cotton wool, three Petri dishes, a lamp and three cardboard boxes. She wants to find out how the direction of light affects the way cress shoots grow.
Plan an investigation the student could carry out.
39 exam-style questions on AQA GCSE Biology 5.4 Plant hormones, covering 5.4.1 Control and coordination and 5.4.2 Use of plant hormones (HT only). Each one has a worked solution and a mark scheme showing where the marks go.