Prokaryotes :: science

ProkaryotesAbstract/ unofficial Changing our focus from the properties and functions that take place inside the cellular telephone to the true cell itself, we retaind three specific bacterial types within this laboratory confirming bacteria, Gram-negative bacteria, and cyanobacteria. We closely observed the features of cyanobacteria and were able to scar them from early(a) bacteria. We specifically observed gloeocapsa, merismopedia, anabaena, and oscillatoria. In addition to this we observed the distinguishable characteristics of prokaryotic organisms referring to size, form, color, elevation and texture, which helped us to lowstand the diversity of these cell types in the kingdom Monera. Through culturing judges from some(prenominal) the toilet and our own mouths, we were able to observe Gram-negative bacteria. We as well sketched our two lawsuits of Gram-negative bacteria. Though we failed to observe Gram-positive bacteria, this may have been due to our sampling and st aining procedure. Because of the concentration of the sample towards the center, bacteria within this region atomic number 18 hard to see under 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 strike out while billeting under a light microscope. Introduction just about of the experiments thus far in this laboratory have covered many a(prenominal) of the functions carried out within the cell such as enzyme activity, photosynthesis, reproduction, and genetics. This experiment gave us a chance to examine the overall single prokaryotic cell in its entirety instead of just the functions it can carry out. We bequeath encounter 4 groups under the kingdom Monera archaeobacteria, Gram-negative bacteria, Gram-positive bacteria, and Mycoplasms. We will also examine the diversity of prokaryotic cell types. For example some are pathogenic, causing diseases, while other are saprophytic, suspension down organic material, and further still some bacteria are autotrophs, making their own food 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 get 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 First examine the plates prepared in the antecedent week and observe as many of your other classmates plates as possible.