Required Practical: Investigating Rate of Photosynthesis
Part of Photosynthesis · GCSE GCSE Biology revision
This required practical covers Required Practical: Investigating Rate of Photosynthesis within Photosynthesis for GCSE Biology. Topic 1: Photosynthesis It is section 6 of 14 in this topic. Revise both the method and the reason for each step, because practical questions often test understanding rather than pure recall.
Topic position
Section 6 of 14
Practice
31 questions
Recall
13 flashcards
🧪 Required Practical: Investigating Rate of Photosynthesis
In this practical you use an aquatic plant (Elodea) to measure the rate of photosynthesis by counting oxygen bubbles per minute at different light intensities.
- Place Elodea in sodium hydrogen carbonate solution (provides CO2).
- Use a lamp at measured distances to vary light intensity.
- Control temperature using a water bath.
- Count bubbles per minute at each distance — more bubbles = faster rate.
- Plot rate against 1/d2 to test the inverse square law.
Keep building this topic
Read this section alongside the surrounding pages in Photosynthesis. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Photosynthesis
Where does photosynthesis take place in plant cells?
Write the balanced symbol equation for photosynthesis.
Quick Recall Flashcards
31 questions on Photosynthesis — practise free
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