Exploring Photosynthesis and Plant Pigments Lab Report (Lab Report Sample)

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Exploring Photosynthesis and Plant Pigments Lab Report
The experiment hypothesized that photosynthesis would occur given sufficient light and moisture. However, photosynthesis would not take place in less than 60 minutes without light. The experiment predicted that the number of leaf disks floating in the two syringes near the light source would rise to the surface at various times. Even after leaving the two syringes in the dark for more than an hour, it was not anticipated that any leaf disks would float. Both the predictions and hypotheses are based on the principle that organic plant materials will always float in water. They float due to the air found in the intercellular spaces of leaves, which aids the plant in absorbing CO2 gas from its surroundings for photosynthesis. The leaves will sink when the disks of leaves in solution are gently sucked to remove the air and replace it with the solution. On the other hand, the floating leaves disks will sink if left in the dark for too long. There can be no further oxygen production since photosynthesis cannot happen without light energy. However, the disks will utilize the stored oxygen gas since respiration continues even in the dark. During respiration, they release carbon dioxide gas, but unlike oxygen, this gas will not become stuck in the interstitial spaces since it readily dissolves in the surrounding water.
As is evident in the graph, the chart proves that our working hypothesis is valid. The light was shown to be a crucial factor in the progression of photosynthesis in this experiment. The absence of light did not cause the leaf disks to sink immediately in the first few minutes because the energy supply is used to produce glucose from carbon dioxide and water. There was more activity in the leaf disks when the four syringes were examined in the light compared to when they observed in the dark. The leaf disks were continually floating up to the syringe's surface in the light. The chlorophyll in the leaf disks absorbed the solar energy, and the disks floated due to the buildup of oxygen. Another key observation was that despite rising to the surface, photosynthesis can be slowed or stopped altogether if exposed to an excessive amount of light.
After hiding the first batch of syringes in a desk drawer for an hour, they were checked every five minutes to see how many disks floated. After maintaining a watch on syringes A