A student investigates photosynthesis in pondweed. The student moves a lamp closer to the pondweed. Which observation would the student expect to make?
More bubbles of gas are given off each minute.
Fewer bubbles of gas are given off each minute.
The same number of bubbles is given off each minute.
Bubbles stop being given off after one minute.
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.