Gram-negative bacteria

that falls, and the bacteria that get you sick may both be small, but when you allow them to accumulate, you can see characteristics of them. While snow is made from frozen water, with flakes differentiating in the structure of them, bacteria is like that. Certain bacteria families may have similar genomes, they do have slight differences that make up what they are. One way to tell the difference is to see if the bacteria is gram positive or gram negative. Gram-Positive bacteria contains peptidoglycan

components in common. Both the snow that falls, and the bacteria that gets people sick may be small, but when allowed to accumulate, characteristics of them become visible. While snow is made from frozen water, with flakes differentiating in the structure of them, bacteria is like that, to a sense. Certain bacteria families may have similar genomes, they do have slight differences that make up what they are. Just like snow being made of frozen water, bacteria is made up of the same four genomes. They’re just

After conducting the Gram stain to ascertain that the unknown bacterium was a Gram negative bacilli, the species were inoculated in multiple biochemical tests. The tests that led to the conclusion of a Gram Negative bacteria were Oxidase, lactose fermentation, MR, VP, Indole, and H2S production. For the oxidase test, there were two categories one was for positive and negative results of the test. The positive result had three different types of bacteria while the negative result was the Enterobacteriaceae

major classes of bacteria that contain peptidoglycan, Gram-positive and Gram- negative. Gram positive bacteria will stain dark purple due to their thick peptidoglycan cell wall, while Gram negative will stain pink due to their thin peptidoglycan cell wall. Many Gram positive and negative bacteria are considered pathogens because they are capable of causing disease in humans. In order to treat properly individuals who are infected with a pathogenic Gram positive or Gram negative bacteria, the identity

able to isolate both the gram-negative and gram-positive bacterium. In order to obtain the correct test results and to ensure the right gram mixed unknown is identified there had to be a series of eight biochemical tests performed on the gram-negative bacterium and five biochemical tests performed on the gram-positive bacterium. Introduction The sole purpose behind this conduction was having the ability to understand just how the gram-negative and gram-positive bacteria can be distinguished and

strain of bacteria a person has will aid in the proper medicine and dose given. Throughout the semester we have learned about different types of bacteria and certain test that can clearly identify them. The purpose of this lab report is to identify a Gram-positive or Gram-negative bacterium. Using all the knowledge of procedures and lab techniques identify the unknown and discuss all the tests you performed. Introduction Gram staining is a technique used to determine if the bacteria is Gram positive

specimens. Each group completed a gram stain followed by a series of other test in order to identify the unknown bacteria. Each student conducted separate testing’s on one unknown in order to specifically identify the strain. Materials and Methods First and foremost the gram stain is conducted to differentiate gram positive bacteria from gram negative bacteria due to their cell structure. The thick layer of peptidoglycan in gram positive bacteria allows the crystal violet dye to retain

BIOL 2050L C1 Instructor: Hélène d’Entremont Room 250 TA: Eileen Haskett Isolation, Examination, and Identification of Gram Negative Pathogenic Bacteria Present in Urine Used to Discover and Diagnose a Urinary Tract Infection Joel Goodwin (100119748) and James Bagley (Partner) 5 November 2014 Two urine samples were obtained, one from the researcher, and the other from an unknown patient labelled ‘pt 17’. The urine samples were diluted to 10-1 and 10-2 concentrations

_________ (50 Possible) Title: Identifying a Gram Positive and Gram Negative bacteria from a mixed broth Abstract: I inoculated a T-Soy agar with bacteria number 118, for this I used a streak isolation method. Next, in order to distinguish between Gram positive and Gram negative I used a streak isolation technique on a CNA plate, then performed the same exact procedure on a MacConkey plate. The results from the CNA plate showed the Gram Positive bacteria was an Alpha hemolyzer. Next, I used a P

Gram Positive Bacteria: After picking test tube #2, I inoculated a CNA plate to isolate my Gram positive bacteria. The colistin nalidixic acid in the media inhibits the growth of Gram negative bacteria, the acid affets the outer membrane of the Gram negative so they are unable to reproduce. This test is performed to determine if the Gram positvie bacterium growing on the plate has the ability to break down sheep red bloold cells. After the CNA was incubated in a candle jar, I saw alpha hemolysis