Investigating the light factors that affect the rate of photosynthesis in Elodea
Fatima Hussien
Sara House, Lesha Liles, Abigail Saucedo, Melrina Stemn
Biology 1441_Sec 017, Monika Pradhan; October 6, 2015
All plants rely on photosynthesis, therefore, we examined the rate at which a submerged plant such as elodea photosynthesized, with different light factors. To do this, the elodea must be completely be submerged in deionized water, later place the two plants under artificial light and natural light. After an hour, elodea has to be removed from the beaker, add three drops of phenolphthalein and then add as many drops of sodium dioxide until the content has turned pink, into the beaker. The amount of sodium dioxide drops that are added to the content after the phenolphthalein will result in the amount of carbon dioxide. With a quick conversion of the number of drops from sodium dioxide in the content will result in the amount volume of carbon dioxide in beaker, explained further in the paper. The reason for this experiment is because more and more people grow plants in greenhouses rather than out in the open. Because people are afraid that the pollution in the air can affect the growth of the plant. The results were that it is better to grow the plants outside, because the natural …show more content…
With one labeled “Artificial Light” the other labeled “Natural Light”, and the last one should be labeled “No Elodea”. The plants should already have elodea in the beakers labeled “Natural Light” and “Artificial Light” the plants should be weighted the same. The one labeled “Artificial Light” should be placed at least 30 cm from direct light. Whereas, the one labeled “Natural Light” should be placed directly under the light. After the timer is set for 60 minutes, record the time the experiment was
Fatima Hussien
Sara House, Lesha Liles, Abigail Saucedo, Melrina Stemn
Biology 1441_Sec 017, Monika Pradhan; October 6, 2015
All plants rely on photosynthesis, therefore, we examined the rate at which a submerged plant such as elodea photosynthesized, with different light factors. To do this, the elodea must be completely be submerged in deionized water, later place the two plants under artificial light and natural light. After an hour, elodea has to be removed from the beaker, add three drops of phenolphthalein and then add as many drops of sodium dioxide until the content has turned pink, into the beaker. The amount of sodium dioxide drops that are added to the content after the phenolphthalein will result in the amount of carbon dioxide. With a quick conversion of the number of drops from sodium dioxide in the content will result in the amount volume of carbon dioxide in beaker, explained further in the paper. The reason for this experiment is because more and more people grow plants in greenhouses rather than out in the open. Because people are afraid that the pollution in the air can affect the growth of the plant. The results were that it is better to grow the plants outside, because the natural …show more content…
With one labeled “Artificial Light” the other labeled “Natural Light”, and the last one should be labeled “No Elodea”. The plants should already have elodea in the beakers labeled “Natural Light” and “Artificial Light” the plants should be weighted the same. The one labeled “Artificial Light” should be placed at least 30 cm from direct light. Whereas, the one labeled “Natural Light” should be placed directly under the light. After the timer is set for 60 minutes, record the time the experiment was