Name Lab‚ Week # 3 Experiment : BACTERIAL GROWTH AND CONTROLLING BACTERIAL GROWTH Introduction <Include purpose of lab experiment> <brief summary of topic investigating and case studies > <state major finding> Procedure < Include information that the reader would need to repeat your experimental procedure. Do not include any observations or results in this section> Observations and Results Part I: Bacterial Growth Result + or - Appearance after Incubation Gram Stain N/A OF Glucose Broth
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to carry nutrients through the cells and make them into useful substances for the cell to utilize. What is the typical size difference between animal cells and bacterial cells? The typical size difference between animal cells and bacterial cells is that animal cells normally are significantly larger. Another difference is that bacterial cell contains a plasmid‚ against the chromosomes that animals possess. Part B: The Gram Stain This procedure is used to separate what two types of bacteria? Gram
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The identification of an unknown bacterial environmental isolate through a series of morphological‚ physiological and differential exercises. The purpose of the environmental isolate report is to learn what is necessary in order to take an unknown environmental isolate (EI) and identify it. This was achieved through a series of exercises that provided information on the morphological‚ physiological and biochemical traits of the EI which were then compiled and interpreted in order to make a presumptive
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fix it both ways) Stain the slides. Properly dispose of any wastes.(waste methanol‚ materials contaminated with bacteria‚ broken glass) Part II. Atlas Sections In your Lab Atlas you will need to read Section 5: Bacterial Cellular Morphology and Simple Stains and Section 6: Bacterial Cell Structures and Differential Stains and then answer the following questions: 2. What is the third important feature of microscopy? Why? Third important feature of microscopy is contrast. To be visible‚ the specimen
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conjunctivitis can occur in one or two of a person’s eyes. It tends to cause a watery discharge while conjunctivitis caused by bacteria causes a thicker discharge. Both are transmitted to another eye in the discharge. Children are primarily affected by bacterial conjunctivitis‚ possibly because it is more transferable in a location like school. People are at a higher risk of developing conjunctivitis if they use contacts. Those who come in
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Alyse Rose Microbiology Lab Bacterial Unknown March 25‚ 2013 Bacterial Unknown Report Each student was given an unknown bacteria to figure out. I was given the unknown bacteria S38. Everybody is supposed to do all sorts of test to identify the bacteria. The first thing I did was smear my bacteria on a liquid medium. I then proceeded to incubate the medium for 24-48 hours. 1. GRAM STAIN The next step I took in finding my unknown bacteria was to gram stain it. This is used to differentiate
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This lab experiment serves as a model for community succession using bacterial colonies as the model. A bacterial colony grows from a single bacterium and is composed of millions of cells. Each colony has distinctive colony morphology: size‚ shape‚ color‚ consistency‚ and color. Community succession is a phenomenon observed in the organizational hierarchy of all living organisms. Community succession is not limited to bacterial colonies‚ but spans the entire community of life. As the community
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inhibits synthesis of bacterial cell wall‚ causing cell death. It is the best beta-lactam for IM administration; has poor capacity to cross blood-brain barrier and thus is not used for treatment of meningitis Cephalosporins exert bactericidal activity by interfering with bacterial cell wall synthesis and inhibiting cross-linking of the peptidoglycan. The cephalosporins are also thought to play a role in the activation of bacterial cell autolysins which may contribute to bacterial cell lysis Onset/peak
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Transformation of Bacterial Cells with Plasmid DNA Introduction: Transformation refers to the process in which the cell integrates foreign DNA to its genetic code‚ meaning it takes the genes and incorporates them into the cell’s current DNA. Cells that can do this naturally‚ most commonly bacteria and archea‚ are known as competent. The bacteria E. coli do not have high transformation competence under normal conditions‚ but can be manipulated to produce better results using
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organisms you see using proper scale and proportion. 4. Provide the following “Observations” in the space to the right of the drawing circle: a. Gram reaction (color and interpretation) b. Morphology (shape) c. Arrangement (how did the bacterial
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