Positive physics graph problems
In Figure 1, the rate of photosynthesis increases when temperature increases because temperature increases the kinetic energy store of the enzyme and substrate molecules used in photosynthesis. When asked to explain graphs, you give reasons for each trend in the bars or lines on the graph.
To describe the graph in Figure 1, for example, you could say: “The rate of photosynthesis increases as temperature increases until a set temperature where the rate then falls back to zero.” If you can see numbers on the graph’s scales, you should also quote some values to validate your descriptions. When asked to describe patterns in graphs, you ‘say what you see’. Below the tutorials you can find exam-style questions where you can apply the knowledge you’ve learnt from the tutorials and also mark schemes, so that you can assess your progress! This will return all the relevant videos. To find video tutorials covering maths skills in Biology, go to the My GCSE Science search and enter the term “maths skills”.
If you want to brush up on types of variables before finding out how they are used in graphs, check out these two blogs:įor the 101 on command words in GCSE Biology, look at this very helpful guide: We talk a lot about variables in this blog, because graphs are a visual way of presenting the relationship between variables.