Bacteria Prac Aim: To observe the growth of bacteria on Agar plates Hypothesis: That the bacteria will grow in colonies throughout the agar plates except for the one with the anti-biotic loop because some will fight off the bacteria. Method: (Method taken from prac sheet) Plate 1: Use the swab to cover your entire agar plate in your bacteria. You only need one swab of bacteria but be careful to cover the entire surface of your agar in a layer of bacteria. Carefully place an Antibiotic Mastring
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following agar mediums: Blood Agar (pg 168)‚ EMB Agar (pg 170)‚ Mannitol Salt Agar (MSA)(pg 172) )‚ MacConkey Agar (pg 174)‚ and PEA Agar (pg 176) to answer the following: 1. What does the blood agar select for? Blood agar allows distinction among bacteria based on their ability to lyse red blood cells (hemolytic activity). 2. What color is the blood agar? Blood red color. 3. What are the 3 types of blood agar results and how can you recognize them? Beta hemolysis‚ which is the complete
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Lab: The Bacteria Around You James Brunet Ms Owen October 14th‚ 2012 Part 1 Purpose To culture and observe the various types of bacteria found around Canterbury High School. Materials and Methods Refer to pages 422-425 of Biology 11 McGraw-Hill Ryerson and the handout “Gram Staining Procedure”. Observations Table 1: Locations of Bacteria Samples Quadrant | Location of Sample Obtained | 1 | Floor | 2 | Water fountain head | 3 | Auditorium Chair | 4 | Inside of Boys’ Bathroom
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Gut bacteria Gut bacteria are bacteria that are located in the gut. The gut is considered as any part of the gastrointestinal tract. The gastrointestinal tract includes the stomach‚ mouth‚ oesophagus‚ and duodenum. The gastrointestinal track has many different parts and each part contains different bacteria.There are 100 trillion bacteria present in the human body‚ most of them can be found within the gut and others can be found in the mouth‚ skin surface‚ urogenital tract and nose. Its structure
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ELECTROMAGNETIC SIGNALS FROM BACTERIA BIO-MEDICAL APPLICATIONS AND INSTRUMENTATION J Vindhya Vasini III year‚ EIE CVR College of Engineering Ph. 9963857871 vasini26393@gmail.com Mirza Faizaan Baig III year‚ EIE CVR College of Engineering Ph. 9700484422 faizaanbaig2@gmail.com K Sandeep III year‚ EIE CVR College of Engineering Ph. 9618268386 sandeepkumeri@gmail.com Bacteria were among the first life forms to appear on Earth‚ and are present in most habitats on the planet
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Material Appendix B – Identifying Bacteria Bacteria identification is accomplished in a number of ways. Two common tools microbiologists use to identify unknown bacteria include dichotomous key and biochemical tests. The dichotomous key is useful when a microbiologist only needs to know which group an unknown microbe belongs to on a general level. When a microbiologist needs to identify a specific bacterium‚ biochemical tests are used. PART ONE: GENERAL BACTERIA IDENTIFICATION Review the dichotomous
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we have learned in the lab to identify two unknown organisms. PROCEDURE I was given unknown #76. I performed the streak plating method with my unknown organisms. To perform this exercise I needed a TSA plate and labeled the bottom of it with my name‚ group number and organism. I also divided the bottom into three sections. After that‚ I sterilized my inoculating loop using the bunsen burner flame. After letting the loop cool‚ I reached into my unknown test tube with my loop and grabbed the organisms
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Bacteria Classification By Gram Staining THE AMERICAN UNIVERSITY IN CAIRO BIOLOGY DEPARTMENT SCIENCE 453 : BIOLOGY FOR ENGINEERS REPORT No.1 Presented By : Karim A. Zaklama 92-1509 Sci. 453-01 24/2/96 Objective: To test a sample of laboratory prepared bacteria and categorise it according to Christian’s gram positive and gram negative classes and also by viewing it under a high powered microscope and oil immersions; classify its shape and note any special characteristics. Introduction: Bacteria
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but diversely distinctive by the specific way they accomplish that means‚ hence all the different classifications. It was in the year of 1888 that the studies of two German scientists‚ Hellriegel and Wilfarth‚ proved that it was the root nodule bacteria that provided nitrogen to their host plants. The next year‚ Frank (1889) published the nodular symbiont under the name Rhizobium leguminosarum‚ and it has remained to this day. These studies brought to light the importance of rhizobia and leguminous
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be similar to the pictures below. (In these examples‚ the time after plating is different for the two samples‚ so be aware that the colonies in these photos are different sizes for a reason.) We will culture our bacteria for about 2-7 days. Characteristics are most visible if the bacteria are examined using a stereoscopic scope. E. coli Shape (form): circular Margin: entire Elevation: raised Size: punctiform‚ small Texture (surface): smooth Appearance: shiny Pigmentation: nonpigmented (colorless)
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