Microbiology : Bacteria - Lab Report Example

Comments (0) Cite this document
BACTERIA Bacteria are a type of prokaryotic microorganisms. Bacteria are neither wholly characteristically plants nor animals. They do not have a nucleus and well-defined cell organelles. They are of the size of a few micrometers in length and have various shapes ranging from rods, corpuscular, spirals etc…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER93.2% of users find it useful
Microbiology Lab Report: Bacteria
Read TextPreview

Extract of sample
"Microbiology : Bacteria"

Download file to see previous pages Paul Ehrlich discovered the first antibiotic by using dyes to ‘stain’ the bacterium Treponema pallidum, which caused syphilis, and he too was awarded the Nobel Prize in 1908 for his contribution to immunology. A significant discovery was made in the year 1977 when Carl Woese determined that archaea had different evolution traits than bacteria. The branch of Science which specifically involves the study of Bacteria is known as Bacteriology which is a branch of Microbiology. Bacteria are present in almost every nook and corner of the earth ranging from hot volcanic regions to ice cold polar caps. There are approximately 5?1030 species of bacteria found in earth. In fact, it has been found that the number of bacteria found in the human body exceeds the total number of cells. A number of bacteria causes disease and is known as pathogenic bacteria. Some of the diseases caused by bacteria are cholera, tuberculosis, syphilis, leprosy etc. The use of antibiotics is common as cure for disease caused by bacteria. Not all bacteria are pathogenic. Bacteria are useful in bio-degradation and are used in processes like solid waste management and sewage treatment. It also finds application in food industry (production of cheese and yoghurt through fermentation) and in biotechnology and pharmaceutical industry. Figure 1: Types of Bacteria It therefore becomes very essential for us to classify the bacteria and determine its characteristics. The most popular technique for the identification of bacteria is the Gram Stain Process which is the method adopted in this experiment. The origin of Gram Stain Process dates back to 1844 and was given by the Danish physician Hans Christian Gram. FLOWCHART OF IDENTIFICATION PROCESS RESULTS & INFERENCES Gram stain: negative This means that the bacterium belongs to the genera Veillonella or Acidaminococcus or Megasphaera. In Cowan and Steel’s Manual for the Identification of Medical Bacteria, there are 39 species of bacteria that fall under this category. Some chief ones being: 1) Alcaligenes 2) Pseudomonas 3) Klebsiella 4) Shigella 5) Salmonella 6) Escherichia 7) Aeromonas 8) Chromobacterium 9) Neisseria 10) Other enteric genera O2 requirement: facultative anaerobe Lactose: + growth + acid + gas Dextrose: + growth weak +acid - gas Sucrose: + growth +acid - gas Nitrate reduction: positive before zinc (nitrate reductase positive), Catalase: Positive, Cytochrome Oxidase: negative EMB: negative growth Due to the afore-mentioned results one can infer that the species is a type of lactose non-fermenter enterobacteria. Spore stain: vegetative cocci This result zeroes down our species to Neisseria which is completely different from enterobacteria which are rod-shaped. MSA: positive growth – manitol The enterobacteria are manitol fermenting. Therefore, it means that it can be a type of lactose-non-fermenting enterobacteria. Blood hemolysis: weak beta. Amylase Lipase Protease and Gelatinase all negative, TSI slant: acid slant alkaline but H2S negative IMViC: negative Methyl red: negative Citrate utilization: negative Urease Utilization: negative The bacteria does not produce H2S and has a negative IMViC test which means that the species of bacterium is probably E. Coli (inactive) ESCHERICHIA COLI (INACTIVE) E. Coli (inactive) is a Gram-negative, rod-shaped bacteria(bacilli) which is found in the intestines of mammals. E. Coli (inactive) is harmless and not pathogenic unlike its namesake and is therefore called as inactive. ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Microbiology Lab Report: Bacteria Report Example | Topics and Well Written Essays - 1000 words”, n.d.)
Retrieved from https://studentshare.org/biology/1437842-microbiology-lab-report
(Microbiology Lab Report: Bacteria Report Example | Topics and Well Written Essays - 1000 Words)
“Microbiology Lab Report: Bacteria Report Example | Topics and Well Written Essays - 1000 Words”, n.d. https://studentshare.org/biology/1437842-microbiology-lab-report.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
Microbiology lab report
It is highly imperative to classify bacteria and to identify microorganisms as they have enough potential to cause various diseases. Essentially, identification process is highly pragmatic for the correct diagnosis and treatment. Identification of the bacteria provides line of treatment.
3 Pages(750 words)Lab Report
Biochemical identification of unknown bacteria
To investigate growth pattern of given culture in liquid media, nutrient broth was inoculated and incubated at 37°C for 24h. After incubation growth was observed visually.
4 Pages(1000 words)Lab Report
Lab Report
Since 19th century scientists were aware of some unique identity of an individual which distinguish from others, like finger prints. In 1970, DNA was established as key element in human life and which makes individual as unique creature. Variability in DNA sequences among individual to individual have attracted forensic experts to develop technique based on DNA to identify individual or criminal similar to finger prints.
9 Pages(2250 words)Lab Report
Lab report
Then place another clamp with a 200-g suspension and repeat the same previous step. Record positions with respect to the points of support and of the weights used. Empty the meter stick of clamps and
3 Pages(750 words)Lab Report
BIOL 260-Microbiology (Bacterial Unknown Lab report)
This is essential to carry out the correct diagnosis and treatment of the individual. Identification of the bacteria provides line of treatment. As the preliminary
2 Pages(500 words)Lab Report
Lab report
o calibrate the pressure transducer and then perform an uncertainty analysis and compare your pressure transducer calibration to the manufacturer’s calibration. 1. Excite the pressure transducer, with a voltage of 10v. The figure above had J17 and J18 as AO (Analog Out). It
5 Pages(1250 words)Lab Report
Antiseptics ( 70%, 91% Isopropyl and Iodine) on Ecoli growth
E coli belong to the Enterobacteriaceae entric bacteria that are facultative anaerobic Gram-negative rods and are mainly found in the gastrointestinal tract of human beings and other warm-blooded animals. The
3 Pages(750 words)Lab Report
Microbiology: Unknown Organism
Through this study, we can observe the amazing reactions. The unknown microorganism was able to ferment sucrose anaerobically hence the production of carbon dioxide and the color change. From the obtained results, the identity of the unknown microorganism was the bacterium Proteus vulgaris.
4 Pages(1000 words)Lab Report
Lab Report
1. E. coli is in competition with S. euglensis at a temperature of 20-35 degrees and a pH of 6-7.5. E. coli is also in competition with N. atol at a temperature of 20-30 degrees and a pH of 4.5 -6.5. P.
1 Pages(250 words)Lab Report
Lab 4 Infectious Bacterial Identification from DNA
DNA sequencing involve identifying the DNA sequence of a bacterium then multiplying the DNA strands using the polymerase reaction that generate a lot of DNA
1 Pages(250 words)Lab Report
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Lab Report on topic Microbiology Lab Report: Bacteria for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us