A trainee has written two notes after studying auxin in young sunflower seedlings.
Note 1: Auxin is made in the growth zones just behind the tips.
Note 2: Auxin inhibits cell elongation in shoots and promotes cell elongation in roots.
Which correction makes both notes correct?
Leave Note 1 and Note 2 unchanged because both notes are correct.
In Note 1, replace “the growth zones just behind the tips” with “the tips”; in Note 2, swap “shoots” and “roots”.
In Note 1, replace “the growth zones just behind the tips” with “the tips”; leave Note 2 unchanged.
Leave Note 1 unchanged; in Note 2, swap “shoots” and “roots”.
87 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.