Photosynthesis Lab Report

Introduction: Photosynthesis is a process that plants use to convert light energy into chemical energy that is stored inside the plant and used later as fuel for the organisms various activities. Photosynthesis is what supports life on this planet. It does this by absorbing the photons given off by light with its leaf pigments or chlorophyll and carotenoids. Different pigments absorb light of different wavelengths. Oxygen is released when water is split. The oxygen and carbohydrates plants give off during photosynthesis is crucial to almost all consumers on this planet.

There are two main steps to photosynthesis, the light reactions and the Calvin cycle. The light reactions are the steps that convert solar energy to chemical energy. During …show more content…
If there is no presence of oxygen then the cycle goes directly to ethanol lactic acid and glycolysis, this whole process is called fermentation. Our formula for when there is no oxygen present is
Also 2atp and 2H2O are the products of this equation. This process is called anaerobic. If there is a presence of oxygen then the formula changes to This includes 36 ATP. The point of this experiment is to see the rate of a reaction of carbon dioxide happening in the yeast at different temperatures and different sugars.

Hypothesis
In room temperature the sucrose would increase in fastest in a reaction, and in low temperature their fastest reaction was glucose.

Prediction
If at room temperatures the rate of reaction would be the fastest for sucrose, than at cool temperatures the rate of reaction would be the fastest at glucose.

Methods /materials
In class we decided not to us 28 degrees Celsius for the cold temperature. We just used 36 and 42 degrees Celsius. In each tube we added 5mL of yeast and 10mL of each type of sugar. Glucose Sucrose Starch Sugar Sub Water
Table 1 2.86 4.01 0 0.39 0
Table 2 10.3 2.6 0 0.16 0.18
Table 3 3.6 3.40 .90 .30 0
Table 4 1.7 .40 0 1 …show more content…
No Carbon Dioxide was made for these solutions. The fastest reactions that we had at room temperature, was sucrose; more Carbon Dioxide was produced here and a faster rate of reaction. At a cool temperature though glucose had the faster rate of reaction due to at cool temp because there is no oxygen there for fermentation happens. We did notice that table 5 had a few numbers that didn’t look quite write or maybe the way that they wrote their data we didn’t understand so there could have been an error with that table.

Conclusion
Aerobic respiration is present because we had levels of oxygen and in order to create sucrose then there would have to be a presence on glucose and fructose. In cool temperatures there is a lack of oxygen there for it would be alcoholic fermentation. I do think that some of our data was incorrect due to the fact that a lot of students didn’t know how to measure the numbers on the ruler therefore messed up some of the

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