CAPE Biology Unit 1 · 2010 · Paper 1 · Question Q12

A scientist who wanted to identify the tissue that transports the products of photosynthesis, exposed the plant to radioactive carbon dioxide. After some time a section was cut through the root of the plant and it was examined for radioactivity. Which area on the dicotyledonous root shown in the diagram below would show the MOST evidence of radioactivity?

1. (A)(A)
2. (B)(B)
3. (C)(C)
4. (D)(D)

This question uses a figure or table from the paper — you'll see it when you practise.