A student measures the rate of photosynthesis of a plant at different carbon dioxide concentrations. The table shows the results. Table
| Carbon dioxide concentration in % | 0.01 | 0.02 | 0.03 | 0.04 |
|---|---|---|---|---|
| Rate of photosynthesis in arbitrary units | 4 | 9 | 13 | 18 |
| Which statement describes the results? |
As carbon dioxide concentration increases, the rate of photosynthesis increases.
As carbon dioxide concentration increases, the rate of photosynthesis decreases.
The rate of photosynthesis doubles each time carbon dioxide concentration increases by 0.01%0.01\%0.01%.
The rate of photosynthesis increases until 0.03%0.03\%0.03% and then stays the same.
117 exam-style questions on OCR GCSE Biology 1.4 Photosynthesis, covering 1.4.1 Photosynthesisers as biomass producers, 1.4.2 Factors affecting the rate of photosynthesis, and 1.4.3 Limiting factors in photosynthesis. Each one has a worked solution and a mark scheme showing where the marks go.