Directions 1 Read through the experiment which looks at proving that a plant uses carbon dioxide CO2 during photosynthesis 2 Answer the questions on the last slide that follow the experiment ID: 763240
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Directions: 1. Read through the experiment, which looks at proving that a plant uses carbon dioxide (CO2) during photosynthesis. 2. Answer the questions on the last slide that follow the experiment. .3 Place answers on a separate sheet of notebook and bring to class on Wednesday.
How can we show that plants use carbon dioxide in photosynthesis?
Hydrogencarbonate Indicator Increasing CO 2 in indicator Decreasing CO 2 in indicator Atmospheric CO2 level Hydrogencarbonate indicator is used to measure carbon dioxide levels in aquatic systems. It is red in equilibrium with atmospheric air. It becomes more orange/yellow with increased carbon dioxide levels. It changes from red through magenta to deep purple as carbon dioxide is removed.
Result in bright light
Result with thin shading
Result in dark
Conclusion: In which light setting was there less carbon dioxide? Using your knowledge about photosynthesis, what is the rationale for a decline in the amount of carbon dioxide in that particular light setting?