Design an experiment that tests the effect of different wavelengths of light on the rate of photosynthesis. What controls and variables would you include?
Understand the Problem
The question is asking for a detailed experimental design to investigate how different wavelengths of light affect the rate of photosynthesis. It seeks information on the independent and dependent variables, as well as controls to ensure the validity of the experiment.
Answer
Experiment with different light wavelengths on photosynthesis, controlling light intensity, temperature, and CO2 levels. Measure photosynthesis rates and compare to a control (white/no light).
Design an experiment with different light wavelengths as independent variables. Use consistent light intensity, temperature, and CO2 levels as controls. Measure the rate of photosynthesis (e.g., via oxygen production) for each wavelength. Compare against a control group (white light or no light).
Answer for screen readers
Design an experiment with different light wavelengths as independent variables. Use consistent light intensity, temperature, and CO2 levels as controls. Measure the rate of photosynthesis (e.g., via oxygen production) for each wavelength. Compare against a control group (white light or no light).
More Information
Different wavelengths of light can influence the rate of photosynthesis because photosynthetic pigments absorb light more effectively at certain wavelengths.
Tips
It is common to forget to maintain a constant CO2 level, which could affect photosynthesis results independently from light wavelength.
Sources
- What would be a controlled variable if I measured how light intensity ... - quora.com
- Designing an experiment to test the rate of photosynthesis - serc.carleton.edu
- What does suitable control mean in an experiment to investigate the ... - homework.study.com
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