There will be tons of experimental reports on the internet that you could look up. Do you know what enzyme sac your doing?
It's a 90 minute test in which both enzymes and photosynthesis are on it. It's not a prac/experimental write up, just need some more challenging questions related to enzymes and photosynthesis. Though saying that we did do experiments on both enzymes and photosynthesis that might show up in the SAC.
The enzymes experiment was where we used a starch solution in 5 test tubes and put water into one (control) and amylase into the others. We also placed them in various water baths of different temperatures so that we could see the effects of temperature (denaturing) on enzyme mediated reactions.
The photosynthesis experiment we cut out a bunch of small disks from leaves and placed them into either bicarbonate solution or water for 15 minutes outside to measure the rate of photosynthesis. We repeated this with coloured cellophane (i.e. red, green, blue etc.) which we placed around the beakers with the disks and solution to see the effect of different wavelengths of light on the rate of photosynthesis.