For the vascular bundle diagram question, I know (from previous mark schemes) that you get a mark if it is over half the space provided, one mark if it is not shaded, and one mark if there is a clear, unbroken outline. After this, you get 2 marks for the correct labels and diagram combined. Don't worry if you messed up this question, the exam board gives marks away for fun on this paper but at the same time, reject answers that could be plausible, as the examiners may not have thought of your ideas.