Globiblugenides Urbanicus shell growth is defined by the two factors of solute within a solution and the level of light intensity reflected onto Globby shells. In both experiments, there were instances where Globby was thriving, and other cases where it did not survive depending on the environment of the protist. For example, based on the test results derived from experiment one, it is safe to deduce that Globbies contain a semi-permeable membrane, performing osmosis depending on the concentration of the solute. This result can be deduced due to the trends found in the tonicity data. When the globbies were in an isotonic solution, their shells were able to grow the most due to the ability to perform balanced osmosis across the semipermeable …show more content…
When globby was submerged in solution D, it continuously lost water over the course of 24 days to the point where it eventually lost it all and died by day 14. This is due to the fact that “solute sucks,” meaning less space is taken up where more NaCl occupies the area. Water then moved into the solution with the the greater molarity to take up the free space due to the dipole-dipole attractions between the H2O and solute. After each day, more water would leave globby, causing its internal pressure to decrease and energy to go down as well, eventually leading to protist death. Finally, the reason why the globbies in solution D died, while the globbies’ shells in solutions B and C increased is due to the fact that water was still present within the protist, but did not obtain optimal shell growth due to how much energy was taken to pump out excess liquid from the shell. While solutions B and C’s shapes were altered, they still held water, which is why the organelles within the globbies continued to function even though the protist ran the risk of popping. Another factor that determines the life of globbies is the exposure of sunlight, and how it is an essential form of energy for the protist when food is …show more content…
Although globby shells did grow with a higher light intensity, it was not because globby can perform photosynthesis, but because it shares a symbiotic relationship with photosynthetic organisms that live within its cytoplasm. In this relationship, globbies and phytosymbionts are able to benefit equally from this relationship. When a higher light intensity is shined onto globby, the phytosymbionts are able to take in larger amounts of light that yield products such as glucose and oxygen that can be taken in by globby to use as energy for the protist. While Globbies do not have chloroplasts, they do contain mitochondria where cellular respiration occurs after the chemical reaction, photosynthesis, is complete. This allows globby to then yield CO2, H2O, and ATP that can help grow the shell, while the products of globby can also provide the algae cells with the essential ingredient, CO2. This permits the photosymbionts to continue to perform photosynthesis and for globby to obtain a vital food source through the photosymbionts performing photosynthesis located within it, creating a beneficial cycle for both living organisms. This idea is shown with the data depicting light energy. When there are greater levels of light energy, there is greater cell growth, which generated greater health and feeding for the host that feeds