In this lab experiment, we observed photosynthesis in spinach leave and investigated the effect of sodium bicarbonate on photosynthesis. The experiment was to determine how many disks of spinach leaves float at the end of every ten minutes.
Our main focused and question was how using different amount of concentration of sodium bicarbonate would affect the process of photosynthesis producing carbon dioxide. Our hypothesis was we will see more spinach disk floating because they are producing carbon dioxide as time pass by within 40 min and the more sodium bicarbonate we add with carbon dioxide, it would affect photosynthesis to produce more oxygen.
First of all, we got …show more content…
As it shown in the graph above, cup A floated more spinach leaf than Cup B because cup B has lower concentration than cup A. Although cup E were under the light source, it did not float any spinach leaf because it contain only pure water. Even though cup B and Cup D have the same concentration of sodium bicarbonate, the reaction is different from each other. Cup B had more floated spinach leaf disks than cup D because cup B exposed to light while cup D was not because it was completely covered. After all, cup C floated more spinach leaf than other cups during the experiment because it have more concentration of sodium bicarbonate. From the result, we concluded that the disks that were under the light source released more oxygen because of the light energy, and caused them to float to the top of the