(a)[2]
Fig. 5.1 is not labelled sufficiently to show that the cell is prokaryotic. State what extra information could be added to two of the labels to demonstrate that this cell is prokaryotic rather than eukaryotic.
(b)[2]
Suggest why the scientists were able to infer that the pathogen had infected the phloem tissue.
(c)[5]
Complete Table 5.1 by comparing: a DNA nucleotide containing adenine, an RNA nucleotide containing adenine, and ATP.