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6.1 Photosynthesis

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Question 12

A sample of seaweed is kept in the light. The oxygen it produces is collected in a gas syringe.

MeasurementValue
Initial gas-syringe reading1.6 cm³
Final gas-syringe reading6.1 cm³
Time between readings150 seconds

Calculate the mean rate of oxygen production in cm³ min⁻¹.

[3]
Markscheme

6.1 Photosynthesis Questions

  1. GCSE
  2. /Biology
  3. /6.1 Photosynthesis

87 exam-style questions on Edexcel GCSE Biology 6.1 Photosynthesis, covering 6.1.1 Photosynthetic organisms as producers, 6.1.2a Limiting factors on the rate of photosynthesis, 6.1.2b Interactions of limiting factors on photosynthesis, and 6.1.3 Inverse square law and light intensity. Each one has a worked solution and a mark scheme showing where the marks go.

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