Gram staining Essays

  • Gram Staining Lab Report

    818 Words  | 4 Pages

    Christian Gram created the Gram stain technique in 1884 (K. Rudolph [Clemson University, Clemson, SC], personal communication). Gram used tissue in his first attempt with staining (1). The staining of the organisms allowed for the viewing of structure and determining those components by the viewing of the color that appeared after staining the organism (2). The purpose of this experiment was to identify the organism as gram-positive or gram-negative. The first step in the gram staining procedure

  • Microbiology Lab Report

    553 Words  | 3 Pages

    and Methods: Two unknowns where received by the instructor unknown K and C. using the methods learn in lab for identifying them. Beginning with a Nutrient Agar plate T streak to identify morphology and purity once completed and gram stain was performed. Once the gram stain was determined an oxidase test was performed on both organisms a tested used to determine if the bacterium produces cytochrome c oxidase. Thus moving into Gelatin hydrolysis testing a test preformed to identify if the microbes

  • Salmonella Lab Report

    1591 Words  | 7 Pages

    enumerating Salmonella spp. in a food sample. 1.2 Hypothesis To achieve a negative results in food sample with the absence of Salmonella spp. 1.3 Introduction The genus Salmonella belong in the family of Enterobacteriaceae is a group of rod-shaped, Gram-negative, and facultative anaerobic bacteria, which grow with or without oxygen. It is also a non-spore forming and a motile or non-motile bacterium with exception of S.gallinarum and S.pullorum. The genus Salmonella consist of two species, S. enterica

  • Rhubarb Osmosis Lab Report

    1127 Words  | 5 Pages

    Part A: Osmosis practical task Aim: To observe the effects of osmosis in rhubarb cells. Hypothesis: Water will be extracted out of the cells in the salt solution causing the cells to look different to the cells in the freshwater solution. Materials: Rhubarb Distilled water in a dropping bottle Salt solution in a dropping bottle Microscope, slides, and coverslips Forceps and razor blades or scalpel Paper Towel Method: Clean and dry a slide and coverslip. Obtain a small sample of the red epidermal

  • Salvadora Persica Disease

    1620 Words  | 7 Pages

    INTRODUCTION Bacterial diseases is any type of disease caused by bacteria. Bacteria 's are a kind of microorganism, which are tiny forms of life that cannot see by easy only be seen with a microscope. The bacteria that cause disease are called pathogenic bacteria. Bacterial diseases happen when pathogenic bacteria inter the body and begin to reproduce and grow in tissues. Pathogenic bacteria may also emit toxins that damage the body. Common pathogenic bacteria and the types of bacterial diseases

  • Statement Of Purpose: A Career As A Microbiologist

    997 Words  | 4 Pages

    The career I have chosen is a microbiologist, some of the main characteristics of the job are working with research teams, and other scientists and technicians. Studying microorganisms like bacteria, viruses, algae, fungi, and several other parasites. They do their work, and studies to learn, or figure out how these organisms live, grow, and interact with their environments. Planning, and conducting complex research projects, you can develop new drugs to combat infectious diseases, and any infection

  • Alcaligenes Faecalis Case Study

    1419 Words  | 6 Pages

    1. Describe the main characteristics of Alcaligenes faecalis. Where is this bacterium naturally found? How large is the genome of Alcaligenes faecalis? Alcaligenes faecalis is an aerobic nonfermentative, oxidase-positive, nonencapsulated, gram-negative rod. It is so named for its ability to produce an alkaline reaction in certain media. Microscopic analyses revealed that the bacteria are located in the esophagus and intestine of the nematodes Steinernema feltiae, S. carpocapsae, and H. bacteriophora

  • Egyptian Wall Painting

    1175 Words  | 5 Pages

    animal glue, etc.) to achieve the adhesion between the particles and consequently to be applied as paint film on the dry ground. The pigment must be dispersed or grinded as evenly as possible in the binding medium to take full advantage of the properties of both the pigment and the binder.[8] The typical stratigraphic structure of the Egyptian wall paintings is usually made of multiple layers. The plastering procedure was to initially smooth an irregular rock surface with one or more of plaster layers

  • Maladies Lab Report

    811 Words  | 4 Pages

    AMITY INSTITUTE oF MICRoBIAL TECHNoLoGY AMITY UNIVERSITY UTTAR PRADESH NTCC oN HANDS oN VARIoUS PATHoLoGICAL TEST Submitted to Dr. DEVENDRA KUMAR Amity Institute of Microbial Technology Guided By:DR.MoHAN MEHTA Submitted By -RISHIN GUPTA Enrolment. No. A0989216009 TABLE oF CoNTENT 1. Declaration by the student 2. Certificate by the faculty guide 3. Abstract 4. Intro 5. Experiments ABSTRACT Demonstrative testing in labs is of incredible esteem while evaluating a

  • Urine Specimens Lab Report

    832 Words  | 4 Pages

    Name : Terry-Ann Poorman Id# : 27120454 Lab# : 1 Lab Instructor: Mrs. Bryan Title : Aim : Discussion Questions: 1) What are the types of urine specimens? Random specimen This type of specimen is used for microscopic and chemical analysis. As the name suggest this sample can be a randomly collected specimen and at an unspecified times. This is often more convenient for the patient. A random specimen is suitable for most screening purposes. Random specimens can at times give an inaccurate view of

  • Unknown Identification Lab Report

    568 Words  | 3 Pages

    The Unknown Identification Lab was an experiment that provided the opportunity to apply all the tests that were learned in the semester of lab, to identify the two bacterias that remain unknown. Gram- staining and two other tests will be used to identify the unknowns. This experiment is crucial to the understanding of each test, and can benefit in the ability to identify the characteristics of specific bacteria. Having a clearer understanding of the bacteria can further the research of bacteria for

  • Exercise 14 Unknown Identification Lab Report

    449 Words  | 2 Pages

    second ½ of the organism was used for gram staining. The gram stain method was performed on the unknown organism per lab manual page 42 and two gram stain reactions were identified. Organism B was gram positive cocci in grape like clusters. Because organism B was positive I could eliminate Escherichia coli, Enterobacter aerogenes and Proteus vulgaris because these bacteria would be rod shapes. Organism A was gram negative pink rod shaped and because of gram positive morphology I could eliminate

  • Unknown Culture Lab Report

    1054 Words  | 5 Pages

    completed in lab, a basic understanding of each type of bacteria was used to create a flow chart that would aid the process of identifying the unknown bacteria within the culture. A gram stain that is performed initially will narrow down the types of tests certain bacteria will and will not respond to. In addition to the gram stain, some of the tests that were used include, a catalase test, an Eosin methylene blue (EMB) agar test, a bile esculin test, and a 6.5% sodium chloride (NaCl) test. If the catalase

  • Control Colony Sample Lab Report

    662 Words  | 3 Pages

    Our results from the PCR process were very unexpected, even to the point the control colony had some rather odd outcomes. The goal of this experiment was to choose three colonies from the petri dish that has been exposed to +Amp, and look for any signs of the +Amp resistant gene, blaTEM, within the colonies and decide if this gene does have an impact on bacterial resistance towards the antibiotic. My partner and I decided to utilize a bacterial colony sample that does have blaTEM genes as our control

  • Examples Of Unknown Lab Report

    694 Words  | 3 Pages

    Unknown Paper I Introduction This lab is a presentation of lab tests performed to finalize a conclusion based on results to identify the given unknown bacteria. The unknown bacteria was identified based on lab test results in the table provided in class for the possible unknown bacteria. The unknown bacteria identified as #36, and based on the lab tests is Enterobacter II Materials and Methods Catalase Test- this test determines whether bacteria have the enzyme catalase which catalyzes the

  • Unknown Bacteria Report

    884 Words  | 4 Pages

    through to be able to correctly identify what bacteria was given. It is important to correctly identify the bacteria because some bacteria are more harmful than others. The gram stain is the first test that should be performed because it helps narrow down the possibilities by telling one whether the bacteria is gram positive or gram negative. After this test is performed, one shall place bacteria on/in Mannitol Salt agar, MacConkey agar, Eosin Methylene Blue agar, Urea agar, Simmon’s Citrate, Purple

  • Streaking Lab Report

    597 Words  | 3 Pages

    Initial Streaking of Unknown in First lab Period The first lab period of this experiment an unknown was assigned. The unknown that corresponds to this lab report is unknown #19. The unknown was cultured during the first lab experiment using TSA, blood agar, MacConkey as the media. The plates were cultured using the streak plate technique. To begin, the materials were gathered, those materials were the plates that were going to be streaked were (MAC,TSA,blood agar), the loop that is going to be used

  • Bacterial Growth Lab Report

    1360 Words  | 6 Pages

    Chapter 5 Bacterial Growth Micro-organisms such as bacteria can be grown in the laboratory if essential components required for their survival are present. The cat of growing bacteria in the lab is referred to as culture and the environment on to which the bacteria is grown is called culture medium. The essential ingredients required for bacterial growth include: o Carbon source o Nitrogen o Metal irons o Presence or absence of Oxygen o Optimal temperature o Optima pH o Moisture Forms of Media

  • Nt1310 Unit 3 Lab Report Sample

    474 Words  | 2 Pages

    Figure 6 shows the glass container with a soil that is susceptible to liquefaction. The proponents provided a set of containers to observe different data. Scanning Electron Microscope (SEM) Test In a certain sample sent in Mindanao State University, Iligan City for SEM (Scanning Electron Microscope) test, results show that the bacteria reacted from the water of the soil which produces chemical reaction and affects the physical attribute of the soil. Image below shows that a limestone like structure

  • Essay On Isopods

    866 Words  | 4 Pages

    Abstract/Background: This experiment was to observe the interaction of Isopods with abiotic and biotic factors. The Isopods were found in a garden and brought in the the lab. In the lab, each group of students pick a control variable and a dependent variable. Problem: In this experiment, Isopods will be observed to see if paper saturated with the color blue is preferred over paper that is saturated with the color green. Hypothesis: The Isopods will prefer the paper saturated with the color