Photosynthesis Simulations.xlsx - What is the Action...

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wavelength (nm) efficiency (%) absorbance (%) 400 70 425 80 450 12 475 10 500 10 525 11 550 18 575 20 600 20 625 50 650 60 675 22 700 3 725 3 750 3 The data already plotted show the absorption spectrum for chlorophyll. Use this simulation to add the action spectrum: Set light intensity to maximum (200lux) Answer these questions: 1. What is the difference between action and absorption spectrum? 2. Why are leaves generally green? 3. Why are some leaves brown? (hint - accessory pigments) What is the Action Spectrum of photosynthesis? 400 0 10 20 30 40 50 60 70 80 90 100 % absorbance/ efficiency
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425 450 475 500 525 550 575 600 625 650 675 700 725 750 Action (% efficiency ATP production) and absorption (% absorbance) spectra for chlorophyll.
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Unformatted text preview: efficiency (%) absorbance (%) Wavelength (nm) Find the virtual lab activity here: Set wavelength to 425nm Use a minimum of 12 different light intensities. light intensity (lux) Efficiency ATP production (%) Plot the data on a line graph. What is the effect of light intensity on the rate of ATP production? Explain this effect. Further research: What is a limiting factor? What is the effect of light intensity on photosynthesis? What are the effects of CO 2 concentration and temperature on the rate of photosynthesis? ations/ch09expl.htm...
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