Tuesday, February 5, 2019
Prokaryotes :: science
ProkaryotesAbstract/Summary Changing our focus from the properties and functions that give in place within the stall to the actual cell itself, we observe troika specific bacteriuml types within this lab Gram-positive bacteria, Gram-negative bacteria, and cyanobacteria. We close observed the features of cyanobacteria and were able to differentiate them from other bacteria. We specifically observed gloeocapsa, merismopedia, anabaena, and oscillatoria. In addition to this we observed the different characteristics of prokaryotic organisms referring to size, form, color, elevation and texture, which helped us to on a lower floorstand the diversity of these cell types in the kingdom Monera. Through culturing samples from two the toilet and our own mouths, we were able to observe Gram-negative bacteria. We as well as sketched our two examples of Gram-negative bacteria. Though we failed to observe Gram-positive bacteria, this may have been payable to our sampling and staining proc edure. Because of the concentration of the sample towards the center, bacteria within this neighbourhood are hard to see on a lower floor oil immersion microscopy. If Gram-positive bacteria had been present, it was covered by layers of both Gram-positive and Gram-negative bacteria making it extremely difficult to differentiate while viewing under a light microscope. Introduction Most of the experiments thus far in this laboratory have covered many of the functions carried out within the cell such(prenominal) as enzyme activity, photosynthesis, reproduction, and genetics. This experiment gave us a chance to hit the books the overall single prokaryotic cell in its entirety sort of of just the functions it can carry out. We will encounter 4 groups under the kingdom Monera archaeobacteria, Gram-negative bacteria, Gram-positive bacteria, and Mycoplasms. We will also canvas the diversity of prokaryotic cell types. For example some are pathogenic, do diseases, while other are saproph ytic, breaking down organic material, and progress still some bacteria are autotrophs, making their own victuals through photosynthesis or chemiosmosis (Lab Manual, 2001). We will also examine the characteristics of these prokaryotic organisms such as the visible size, form, color, elevation, and texture of a colony or colonies. To nail detailed observations of these various organisms we will view their occurrence through the culturing of samples by adding microbes onto a sterile medium within Petri dishes and allowing them to multiply. Finally we will also examine the features of cyanobacteria that distinguish them from other bacteria, and their role in nature. Materials/Methods inaugural examine the plates prepared in the previous week and observe as many of your other classmates plates as possible.