Practise Edexcel GCSE Biology 6.3 Plant hormones with exam-style questions for Foundation and Higher tier. 39 questions covering 6.3.1 Plant hormones and tropisms and 6.3.2 Commercial uses of plant hormones, matched to the Edexcel GCSE Biology (1BI0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.