Chloroplast Decolourisation Experiments

This afternoon, the Upper Sixth Form students conducted a Biology practical in the lab as part of their A-Level requirements. The objective of the experiment was to examine the effect of ammonium hydroxide on the decolourisation time of chloroplasts using DCPIP. The DCPIP goes from blue to colourless when it accepts electrons released by the chlorophyll. All three teams were pleased to report their experiments were successful and will be going away to analyse their data and draw their conclusions.