Streptococcus pneumonia
Pneumococcus, (Streptococcus pneumoniae), spheroidal
-Hygienic measures reduce the numbers of resident & transient microorganisms & the likelihood of infection…
The presence of the bacterial capsule: a. | promotes attachment of the bacteria to tissue | b. | protects the microbe from phagocytosis | c. | increases the release of toxins and enzymes | d. | prevents replication of the bacterium | 4. Microbial mutation means that: a. | genetic information and some microbial characteristics have changed | b. | pathogens become nonpathogens | c. | the microbe survives adverse conditions but can no longer replicate | d. | the immune response to that microbe is strengthened | 5. A bacterial endospore can: a. | also be classified as an acid-fast bacterium | b. | exist in latent form inside a host cell | c. | reproduce very rapidly | d. | survive high temperatures and dry environment | 6.…
It receives partially digested food (known as chyme) from the stomach and plays a vital role in the chemical digestion of chyme in preparation for absorption in the small intestine.…
In this lab experiment we did several test to determine what our unknown bacteria was. To determine this we recorded the results of how the bacteria reacted to different media. Depending on the results of each test we could narrow down the different bacteria to determine what our unknown is. This experiment will also determine if our bacteria is a fermenter of sugars and if it is catalase positive. If the bacteria is a fermenter they will use the sugars to make ATP. If the bacteria is a fermenter of lactose/sucrose the EMB plate we used will “clearly differentiate between the colonies of lactose fermenting and non-fermenting microbes. In the same medium sucrose was also included to differentiate between coliforms that were able to ferment sucrose more rapidly than those that were unable to ferment sucrose” (Cheeptham & Lal, 2007).…
Imagine spending your entire life trapped inside a bubble of antiseptic perfection,with no germs. You would develop a extremely weak immune system when the inevitable exposure to germs occurred you’d become extremely sick.…
An unknown bacterium experiment, this experiment was done to discover what bacterium was in a mixed culture sample. This experiment worked with enteric bacteria which are members of the Enterobacteriaceae and live in the intestinal tract (Willey et al., 2014). Also found in Willey et al (2014) is some characteristics of enterics such as they all degrade sugars by means of the Embden-Meyerhof pathway, they produce plasmid-encoded proteins and that some of them perform mixed acid fermentation, some use enzyme systems like formate dehydrogenase and pyruvate formate-lyase (PFL) The first thing that had to be done was the streak plating to isolate the bacterium, then the next lab multiple tests were ran to help identify which bacterium was in the sample. One of the most important tests done was gram staining because it helped to limit the possible bacterium that it could have been. To be sure which bacterium was worked with we referred to the Bergey’s manual and compared the results to the possible bacterium.…
2. Suppressing inflammation not only offers relief from common symptoms like fever, diarrhea, and pain, it also allows your intestinal tissues to heal.…
Helps to maintain normal body structure and metabolism, including helping to keep blood glucose levels within set levels.…
Next, an oxidase test was performed to eliminate one or more of the bacterium choices. P. aeruginosa was eliminated as the identity of the bacterium when the oxidase test results were negative. An EMB plate of the bacteria was examined to identify whether the bacterium was S. typhi or E. coli. The growth on the EMB plate was shiny and metallic green, meaning that it was positive for lactose fermentation. S. typhi exhibits intermediate lactose fermentation with pink or purple growth on an EMB plate, so it was eliminated as the possible identity of Bacteria A. To confirm the identity of Bacteria A as E. coli, an Enterotube test inoculated with Bacteria A was observed. The Biocode confirmed the identity of Bacteria A as E.…
Bacteria is everywhere inside and outside our bodies.Some are mostly harmless and some can be useful.…
* The bacterium also populates the breathing tubes in the lung, inflaming and narrowing them.…
We live in a world full of bacteria, in fact, bacteria is all around us. They are tiny, one celled creatures that get nutrients from their environments in order to live. In some cases that environment is a human body. But not all bacteria are bad. Some bacteria are good for our bodies; they help keep belongings in balance. Good bacteria live in our intestines and help us use the nutrients in the food we eat and make waste from what is left over. We could not make the most of a healthy meal without these important helpful germs! Scientists in labs produce medicines and vaccines, which also use some bacteria. The novel Good Germs Bad Germs, by Jessica Snyder Sachs, gives an insight look into a future in which antibiotics will be designed and used more wisely, and beyond that, to a day when we may replace antibacterial drugs and cleansers with bacterial ones (each custom-designed for maximum health benefits).…
their gut. The number of C. difficile bacteria that live in the gut of healthy people is kept in check by all the…
The focus of this experiment was to identify unknown bacteria provided. The identification of unknown bacteria is beneficial in many aspects of the research of microorganisms and also aids physicians to treat patients correctly. Various tests were performed to provide the fermentation abilities, presence of particular enzymes, and biochemical reactions. Qualitative observations were made on the tests in identification process. The data from experimentation provided sufficient results to suggest that the identity of unknown bacterium was the gram-positive spore forming bacteria, Bacillus Subtilis.…
Bacteria are the main source for all diseases and deaths worldwide and have been on earth for billions of years, much longer than humans. Bacteria were first discovered by a Dutchman named Anton van Leeuwenhoek in the 1660’s but it wasn’t until the 1850’s that bacteria was regarded as the main cause of disease. Because bacteria have been around for so long it has evolved to adapt to most environments to withstand any other organisms. In the 1930’s Alexander Fleming, Ernst Chain and Howard Florey discovered an antibody which could destroy most bacteria and assist to fight infectious diseases. Many experiments were completed to understand the full impact antibiotics had on humans and how much was needed to rid someone of disease. Drug companies began to mass produce Antibiotics as a means of curing infections and diseases, but only a few years later scientists began to observe the bacteria’s resistance to antibiotics. Like most environments,…