Which statement explains why chloroplasts are important in photosynthesis?
They maintain a lower temperature than the surrounding cytoplasm.
They are the primary site for exothermic reactions in the cell.
They contain pigments and enzymes needed for an endothermic reaction.
They increase the surface-area-to-volume ratio of the outer cell membrane.
12 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.