Purpose: To be familiarized with the science and techniques used to identify different types of bacteria based on their DNA sequences.…
include a description of the main types of microorganisms, how they are identified, their growth…
Give examples of bacteria classified as Archeabacteria and Eubacteria. Answer: Archeabacteria: Methanogens – “methane makers”; Extreme halophiles – “salt lovers”; Extreme thermophiles – “heat lovers” Eubacteria: spirochetes; chlamydias; proteobacteria; Gram-positive bacteria; cyanobacteria…
One possible source of contamination may be the produce that is grown and distributed locally at a farmer’s market. A test sample of some of the produce revealed evidence of bacterial contamination. The bacteria sample was tested in a microbiology lab and showed the results that follow. The laboratory also performed a Gram stain of the isolated bacteria and ran a number of biochemical tests to aid identification. The biochemical tests were assayed using the Analytical Profile Index (API) 20E system for identification of Enterobacteriaceae and other gram-negative…
Facultative Microbes : Microbes which can grow in the presence of O2 or absence of O2…
2 Main groups of bacteria: a. Eubacteria (what we look at in lab). b. Archaicbacteria note** à bacteria are more beneficial to us than harmful ** E. Viruses 1. Borderline b/w living & non-living a.…
* Parasites are those micro-organisms(hosts) for their survival both virus and bacteria could be parasite…
As we know bacteria comes in various classes and are distinguished by their shapes, chemical configuration, source of energy either sunlight or chemicals, nutritional requisites and biochemical actions.…
Bacteria are prokaryotes under the kingdom Monera. This means they have no true nucleus. Most bacteria also lack internal organelles. Most bacteria is beneficiary while a fraction are pathogens. Pathogens cause human and animal disease. However, they can also produce antibiotics. Beneficial bacteria can do various tasks from producing yogurt to decomposing dead organic matter.…
The purpose of this is knowing the types of bacteria that exist in our environment and diseases caused by them, and how treat it.…
Bacteria is a single celled organism that multiply by themselves. They lives within and on most living and nonliving things. The majority of bacteria’s are harmless and beneficial to the human body but some can cause infectious diseases. A bacterium usually affects one part of the body and doesn’t spread across or through the body. Bacterial infections are normally treated with a cause of antibiotics.…
E. coli belongs to the phylum of Proteobacteria, it is in the class of gammaproteobacteria and the family of enterobacteriaceae. There are around 200 different E.coli serotypes. When stained, E. coli appears as gram-negative bacilli. It appears in pairs or singly. E. coli is non spore forming, catalase positive, oxidase negative and facultatively anaerobic or aerobic. E. Coli can be motile by peritrichous flagella or…
Stage II: In this stage the acetogenic bacteria consume these primary products and produce hydrogen, carbon dioxide and acetic acid.…
Ahmad Bickley • • • Bacteria can be found in the air, soil, water, on you and inside you. There are mire bacterial cells inside your gut and on your skin than there are cells in your body. The Kingdom Monera is comprised only of bacteria.…
Bacteria are round, rod or spiral shaped microorganisms. Bacteria may grow under a wide variety of conditions. There are many types of bacteria that cause spoilage. They can be divided into: spore-forming and non-spore-forming. Bacteria generally prefer low acid foods like vegetables and meat. In order to destroy bacteria spores in a relatively short period of time, low acid foods must be processed for the appropriate length of time at 116°C (240°F) in a pressure canner. (Temperatures higher than 100°C [212°F] can be obtained only by pressure canning.)…