The palisade cell can be found in the upper part of all leaves. Their function is to enable photosynthesis to be carried out efficiently and they have several adaptations.

First broadcast:
29 March 2001

This clip could begin a lesson discussing the role of the chloroplasts. Students could investigate this further by testing both green and variegated leaves for starch, to show the photosynthesising areas of the plant. Pupils could be asked what else is is needed for photosynthesis (other than light) and could explain how the leaf has adapted to collect it. Students could then label the four structures of a typical plant cell (not mentioned) to reinforce things they have previously learned and investigate the importance of light intensity on photosynthesis.