Photosynthesis Lab Report
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Name: -------------------------------------------------
Biology 104
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Lab Section: 14
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TA: Victoria Prescott
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Date: 9/13/2012
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The Effects of Light Intensity and NaHCO3 concentrations on the Rate of Photosynthesis
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Definitions of terms:
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The experiment conducted in class was to determine …show more content…
This process occurs in plants and some algae. Plants need only light energy, CO2, and H2O to make sugar. The process of photosynthesis takes place in the chloroplasts, specifically using chlorophyll, the green pigment involved in photosynthesis.
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http://biology.clc.uc.edu/courses/bio104/photosyn.htm
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2- Chloroplasts: are organelles found in plant cells and other eukaryotic organisms that conduct photosynthesis. Chloroplasts capture light energy, store it in the energy storage molecules ATP and NADPH and use it in the process called photosynthesis to make organic molecules and free oxygen from carbon dioxide and water.
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http://en.wikipedia.org/wiki/Chloroplast …show more content…
While the oxygen is removed from all leaf disks we picked, there was some of them might have been more thoroughly infiltrated than others. For example, when we picked the disks, some of them sank immediately while others took a while. Also possible that when we distributed the leaf disks, we may have put some of the leaf disks that were not infiltrated under the room light. Because they already had some oxygen in them, they could have been more likely to float quicker. Additionally, there are other factors could have influenced our results detrimentally, as well. In addition, although this method is an easy way to measure the rate of photosynthesis, it is not the most accurate. Cellular respiration, a process that uses the oxygen produced during light reactions, could have occurred. If the oxygen produced by the leaf disks was used during cellular respiration, the leaf disks might not have risen even though they did photosynthesize. I think to improve this experiment next time; we have to keep all these factors in mind, also make sure to pick the leaves off the spinach plant ourselves, or at least ascertain the health and age of both the leaves we use and the plant they are from, not to mentioned doing the vacuuming process as well. In general, for future experiments, I would allot more time and have more materials and do the whole process. Conducting such an experiment inspired me
Name: -------------------------------------------------
Biology 104
-------------------------------------------------
Lab Section: 14
-------------------------------------------------
TA: Victoria Prescott
-------------------------------------------------
Date: 9/13/2012
-------------------------------------------------
-------------------------------------------------
The Effects of Light Intensity and NaHCO3 concentrations on the Rate of Photosynthesis
-------------------------------------------------
-------------------------------------------------
Definitions of terms:
-------------------------------------------------
The experiment conducted in class was to determine …show more content…
This process occurs in plants and some algae. Plants need only light energy, CO2, and H2O to make sugar. The process of photosynthesis takes place in the chloroplasts, specifically using chlorophyll, the green pigment involved in photosynthesis.
-------------------------------------------------
http://biology.clc.uc.edu/courses/bio104/photosyn.htm
-------------------------------------------------
2- Chloroplasts: are organelles found in plant cells and other eukaryotic organisms that conduct photosynthesis. Chloroplasts capture light energy, store it in the energy storage molecules ATP and NADPH and use it in the process called photosynthesis to make organic molecules and free oxygen from carbon dioxide and water.
-------------------------------------------------
http://en.wikipedia.org/wiki/Chloroplast …show more content…
While the oxygen is removed from all leaf disks we picked, there was some of them might have been more thoroughly infiltrated than others. For example, when we picked the disks, some of them sank immediately while others took a while. Also possible that when we distributed the leaf disks, we may have put some of the leaf disks that were not infiltrated under the room light. Because they already had some oxygen in them, they could have been more likely to float quicker. Additionally, there are other factors could have influenced our results detrimentally, as well. In addition, although this method is an easy way to measure the rate of photosynthesis, it is not the most accurate. Cellular respiration, a process that uses the oxygen produced during light reactions, could have occurred. If the oxygen produced by the leaf disks was used during cellular respiration, the leaf disks might not have risen even though they did photosynthesize. I think to improve this experiment next time; we have to keep all these factors in mind, also make sure to pick the leaves off the spinach plant ourselves, or at least ascertain the health and age of both the leaves we use and the plant they are from, not to mentioned doing the vacuuming process as well. In general, for future experiments, I would allot more time and have more materials and do the whole process. Conducting such an experiment inspired me