Microbiology

The Microbial World on Your Teeth Have you ever realized just how important your teeth are? Smile. Whether you know it or not, your smile is a huge part of who you are. Your smile is one of the first things people will notice about you. It is one of the most effective ways to show joy and bring joy to others. This is just one reason why taking good care of our teeth is so vital. Have you ever wondered why you need to brush your teeth so often? Most people know that they are supposed to…

and/or Hepatitis B and other medically important bacteria. Therefore, it is important that the laboratory workers protect themselves by using the correct personnel protective equipment (PPE) and by so doing protect the members of the public. In the microbiology laboratory, sterile techniques must always be used to prevent cross contamination of specimens but also to prevent introducing micro-organisms in otherwise sterile specimens. This can be achieved by employing appropriate techniques of…

In the field of Microbiology, it is essential that the microorganisms being examined are seen clearly and distinctly under the microscope. Most specimen thrive in aqueous environments, therefore they are translucent and when mounted on a microscope the light passes through them making it impossible to see the specimen. Equally as important as this is that the viewer is aware of what type pf bacteria is being utilized. Both of these criteria in a lab are met with the use of a staining procedure…

Throughout the semester in the microbiology lab we have been taught how to conduct multiple experiments to identify microorganisms. Many of these experiments can be used on all different types of microorganisms but cumulatively they can help isolate a singular microorganism’s identity. At the beginning of the semester we were divided into several groups and were assigned an unknown of which we were tasked with identifying. Being assigned number 14 as our unknown, my group consisting of…

Introduction Identifying unknown bacterium is not only vital to microbiology, but also to the medical and pharmaceutical industries in order to treat disease/infection properly. Bacteria are classified and identified to distinguish among strains and to group them by criteria of interest (1). There are several different procedures that can be utilized to identify a bacterium. This includes the oxidation test, gram stain, and catalase test. The purpose of this lab report is to show the…

This lab experiment was completed to determine the environment in which microbes prefer to live. The pH, moisture, available nutrients, oxygen and light all affect the rate in which bacteria grow. The majority of bacteria flourish when the pH level is near neutral; the growth rate is highly affected if the pH is off by just a little. If too acidic, the amount of time it takes the bacteria to adjust to a new environment (lag time) is increased which slows the growth, the activity of enzymes is…

Sejaphala M.D. Student No. 62399543 Unique Number: 770819 Introductory Microbiology MIB2601 Assignment 02 Due Date: 13 April 2018 QUESTION 1 1. Bacteria is stained using a primary stain called crystal violet and then fixed with a mordant which in most cases is iodine. While some bacteria have the ability to retain the primary stain, others discolor when exposed to the acetone and alcohol (95%). Hence, the Gram stain divides bacteria into two groups- these bacteria are grouped…

University, Boumerdès 35000, Algeria 2 Department of Chemical and Pharmaceutical Process Engineering, FHC, M’hamed Bougara University, Boumerdès 35000, Algeria 3 National Laboratory of Control of Pharmaceuticals Products (NLCPP), Algiers, Algeria. 4 Microbiology Laboratory, CHU Mustapha, Algiers, Algeria. A b s t r a c t The present study aim to evaluate the in vitro antimicrobial activity of essential oil (EO) of Thymus fontanesii Boiss. & Reut and a formulation containing…

identify to Genus and species because they can cause various diseases. We need to know that what helpful or harmful microbe in this environment. This project’s purpose is to identify an unknown bacterium by various methods. Most stains used in microbiology are differential stain, which use more than one dye so that different cells, chemicals, or structures such as Gram staining, TTC reduction, Oxygen requirement test, Catalase test, Nitrate test, Motility, Triple Sugar test, Carbohydrate…

The total proteins are composed of 12.8 grams, while cholesterol at 13.8 grams for every 100 grams of fertilized duck egg (Table 2) (Jalaludeen & Churchill, 2006). Proteins aid in the cultivation of various bacteria whereas it is one of the basic growth components in bacterial cultivation. Moreover, the presence of cholesterol in vivo aids in nurturing bacteria and allow it entry into host cells. (Tille, 2013). Table 2 Nutritive Value of Duck egg compared to Chicken egg.…