Edexcel IGCSE Biology paper 1 - Photosynthesis question and Bread Dough Question
The photosynthesis with the pondweed question was honestly sortta weird for me and i basically just wrote random stuff for that.
I basically wrote how white light had the lowest percentage transmittance (what ever the fck that was) thing and release more bubbles which means that more O2 was produced so greater rate of photosynthesis. Then i wrote basically the opposite for green light talking about how it had higher percentage transmittance and had less bubbles produced so less photosynthesis. And i just finally made a conclusion saying that the lower the percentage transmittance of the colour, the higher the rate of photosynthesis.
For the very last question about writing an investigation for the effect of salt on the increase in size of bread dough...
How did you guys describe how you would measure the size of bread dough??
Beacause I just waffled and was just vague saying to just use a ruler and measure mass using an electronic balance
(p.s. The Sheep Fleece question with the random selective breeding question, describing graph and random farm X along with the final random 'why farmers need sheep with more fleece' question was honestly so weird)