Learning objective
Identify variables that should be controlled when investigating light intensity and photosynthesis rate.
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Topic
Photosynthesis
Subtopic
Rate of photosynthesis
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Quick explanation
Identify variables that should be controlled when investigating light intensity and photosynthesis rate
- This point belongs to Photosynthesis, especially Rate of photosynthesis.
- You need to be able to identify variables that should be controlled when investigating light intensity and photosynthesis rate.
- The key ideas to know are light intensity.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Rate of photosynthesis to exam-style questions, flashcards, and revision notes for Photosynthesis.
Quick student answer
What are the variables in the variables that should be controlled when investigating light intensity and photosynthesis rate?
Direct answer
In Biology, this page helps you handle practical questions about variables that should be controlled when investigating light intensity and photosynthesis rate in Photosynthesis. Focus on the independent, dependent and control variables, the method, and how the evidence supports a conclusion. Key terms to check are controlled variables and light intensity.
Key terms
- controlled variables: Factors that are kept constant during an experiment to ensure that the results are valid.
- light intensity: The amount of light energy that is available for photosynthesis, which can affect the rate of the process.
Common trap
Controlling Variables in Photosynthesis Experiments: Remember to consider other factors such as temperature, carbon dioxide concentration, and the type of aquatic organism used, ensuring a fair test.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Represent photosynthesis using the word equation carbon dioxide plus water makes glucose plus oxygen.
Photosynthetic reaction
- Represent photosynthesis using the symbol equation 6CO2 + 6H2O -> C6H12O6 + 6O2.
Photosynthetic reaction
- Recognise the chemical symbols CO2, H2O, O2 and C6H12O6 in the photosynthesis equation.
Photosynthetic reaction
- Describe photosynthesis as an endothermic reaction.
Photosynthetic reaction
- Explain that light transfers energy from the environment to chloroplasts during photosynthesis.
Photosynthetic reaction