2009 A2 Biology Practical Plan (OCR)

Its the one about the effects of gibberellic acid on the germination of cereal grains. I'm finding it fairly easy its just I've just found out we have to use information from one than more area of the A2 specification. I don't know which other one to use, I'm using the bit about plant growth regulators in the homeostasis section but the rest of the specification seems irrelevant. I'm also using what we learnt about enzymes in the AS year. I was thinking maybe the photosynthesis topic has something to do with it. Help would be great.