Respiration And Photosynthesis

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Abstract: In our most recent lab, before we could expand our knowledge about photosynthesis, we first had to understand its relationship with cellular respiration and how it can be further divided into photochemical and biochemical pathways. After achieving this knowledge, we furthered our understanding of photosynthetic reactions by and experimenting with the factors that affect photosynthesis, which are light intensity, pigments, and light wavelength. By experimenting with these factors, our group was able to create an action and absorbance spectrum, which allowed us to determine which light wavelengths do the pigments in plants respectively absorb for photosynthesis. This allowed us to fully understand what conditions photosynthesis must …show more content…
In cellular respiration, the reaction proceeds to consume oxygen and produce carbon dioxide as the byproduct. While in photosynthesis, the reaction proceeds to consume carbon dioxide and produce oxygen as the byproduct. Therefore, it can be determined that the relationship between cellular respiration and photosynthesis is that the products of one of the processes are the reactants of the other. Photosynthesis is a very complex process, and can further divided into photochemical and biochemical reactions. In the photochemical reactions of photosynthesis, water, light energy, NADP^+, and ADP are required to produce oxygen, NADPH, and ATP. While in the biochemical reactions of photosynthesis, carbon dioxide, NADPH, and ATP are required to produce sugar, NADP^+, and ADP. Therefore, it can be seen that photochemical and biochemical reactions share a unique relationship that is very similar to cellular respiration and photosynthesis. This is because some of the products of one of the processes are the reactants of the other. Though in order to fully understand photosynthetic reactions, we must look at the factors that affect photosynthesis, which are light wavelength, pigments, and light intensity. Light wavelength affect photosynthesis because photosynthetic reactions tend to be more …show more content…
Null Hypothesis: Greater intensities of light does not make photosynthesis and its reactions more effective
Experiment #2 Action Spectrum: Floating Spinach Disk Hypothesis: There will be more floating spinach disks in blue, red, and white light than in dark or green light because photosynthesis tends to be more effective when exposed to blue, red, and white light wavelengths. Null Hypothesis: There will be no difference in the number of floating spinach disks when exposed to blue, white, red, and green light, along with absence of light.
Experiment #3 Absorption Spectrums for Pigments Hypothesis: All the pigments that our group will be experimenting with will tend have a low absorbance on the absorbance spectrum for green light. Null Hypothesis: All the pigments on the absorption spectrum will have the same absorbance values when exposed to any color of

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