Gram-positive bacteria

Introduction: Bacteria are among the most abundant of all organisms on earth. Some species of bacteria is always present in every different environment the plant has to offer. For this to be possible, bacteria are all very different from one another. This lab aimed to identify a certain colony of bacteria, using a variety of tests at the disposal of scientists. The simplest method of narrowing down possibilities involves the use of a compound microscope to observe the general shape of the cells

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

Gram Negative Unknown Lab Report April Smith August 1, 2014 Unknown 20 Abstract The bases of this experiment was to discover the identify of the unknown from three possible specimens: Klebsiella pneumonia, Escherichia coli, and Enterobacter aerogenes. Utilizaing the T streak technique, the bacteria was isolated into pure colonies for further study. The Gram Stain method was used to identity the morhphology of the bacteria such as the shape and whether the bacteria was Gram positive or Gram negative

Abstract The identification of bacteria is a crucial procedure in the field of biology. Identification can be done through a series of tests run on different forms of media that detect the physical and biochemical properties of the cells. In this experiment, a sample containing two unknown species of bacteria was run through fourteen tests to determine morphology, fermentation properties, reducing and oxidative properties, and other various characteristics of each isolated unknown. It was concluded

Identifying Unknown Bacteria 9177-Pseudomonas Aeruginosa The identification of the unknown began with a gram-negative result during the gram stain testing; gram-negative results are pink in color, because the structure of the cell does not hold Gram’s crystal violet stain as well as gram-positive bacteria does. Gram-positive bacteria are purple in color, compared to the pink in the gram-negative cells because of the safranin. The unknown, Pseudomonas aeruginosa, was a gram-negative aerobe, which

• Light source: Photodynamic therapy needs a source of light that activates the photosensitizer by exposure to low-power visible light at a specific wavelength.(118) Human tissue transmits red light efficiently, and the longer activation wavelength of the photosensitizer results in deeper light penetration.(118) Consequently, most photosensitizers are activated by red light between 630 and 700 nm, corresponding to a light penetration depth from 0.5 cm (at 630 nm) to 1.5 cm (at 700 nm).(119) This

Escherichia coli is a gram-negative bacillus that is facultatively anaerobic and which is classified as part of the Enterobacteriaceae family. It is most commonly found in the lower intestines of warm blooded organisms although it is capable of surviving outside of the host for an extended time and may be spread through contact of infected fecal matter as well as personal contact with an infected host. Several strains of E. coli live in endotherms as part of the normal flora of the gut and provide

Pseduo Aeruginosa- This bacteria is a gram negative, staphylobacillus (rod shaped) organism and arranged in a clustered/colonial formation It is in my picture you can see that the bacteria all over is stained pink meaning that the bacteria is gram negative because of the counterstain. It also has the shape of a rod meaning that it is in fact bacillus. It was easy for me to find this bacteria and put it under oil immersion to get a clearer picture. While checking google it is clear to me that my

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

other etiologies that lead to the development of further organ injury, ultimately culminating in multiple organ dysfunction syndromes. The word “bacteraemia” is used when bacteria are isolated from the blood whether clinical symptoms are present or not while the words “sepsis” or “septicaemia” is used for the isolation of bacteria in blood in combination with clinical symptoms and signs of infections. Neonatal sepsis, also named “Sepsis neonatorum”, represents to a group of physical and laboratory