Biology 100 GROWTH OF BACTERIA INTRODUCTION We share our environment with various and diverse microorganisms. Humans harbor various bacteria on their skin, in their upper respiratory tract, and in their alimentary canals. There are very few, if any, environments in nature in which bacteria do not exist. Bacteria have been isolated from such diverse environments as sulfur hot-springs associated with volcanic activity to super-cooled waters of the Antarctic. This lab will consist
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Colloids and Surfaces B: Biointerfaces 102 (2013) 412–419 Contents lists available at SciVerse ScienceDirect Colloids and Surfaces B: Biointerfaces journal homepage: www.elsevier.com/locate/colsurfb Non-cytotoxic antibacterial silver–coumarin complex doped sol–gel coatings Swarna Jaiswal a,b , Kunal Bhattacharya c , Maeve Sullivan d , Maureen Walsh d , Bernadette S. Creaven d , Fathima Laffir e , Brendan Duffy a,∗ , Patrick McHale b a Centre for Research in Engineering Surface Technology
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choose to hand write your responses, please ensure that your write the question number clearly next to your answers. Task/Question 1. List and give a brief description of the four main groups of micro-organisms. | |Bacteria | | |A single celled micro-organism, in other | | |words they are only one cell. However, they | | |come in a variety of shapes and sizes.
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Life 120 Lab #1 “Cell Structure and Function And Movement of Materials across Cell Membranes” 1-20-15 Plant Cell Structure Abstract: In cells, water will move from areas of high concentration to areas of low concentration. This was addressed by observing the changes in cells as they were surrounded by NaCl solution and later by a water solution. The results support our hypothesis and show that the composition of the surroundings has a visible (under a microscope) effect on the shape
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Name and course section: LeKesha Hinds Title: Bacterial Morphology- Lab #2 Purpose: Being able to observe morphologies by preparing wet mount slides and learning direct and indirect staining techniques. Procedure: First, set up the microscope. View the prepared slides of bacterial morphology. Use each morphological type as a comparative tool for the remainder of the exercise. Disinfect your work area with a 10%-bleach solution using the Procedures in the Preparation of Disinfecting Solution
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suffering from symptoms it’s important to drink a lot of fluids and get enough rest but if you feel that your symptoms are severe call a doctor because certain antibiotics can reduce the durations of this illness. Salmonella - the name of group bacteria, this bacterium is the most common cause of food poisoning in the US. Usually these symptoms last 4-7 days and with
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particular species of organism. B. What metabolic end product does the MR test for? Methyl Red or MR is a test used to identify bacteria based on the way they metabolize glucose. C. What does an orange color indicate as a result for an MR test? The orange result in an MR test, is an indicator that the test was inconclusive. It is possible that the bacteria produces some acidic products, but not enough to overwhelm the phosphate buffer in the broth to turn it red. D. What metabolic end
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Introduction Microorganisms are all around us and we interact with them all the time every day. Everyday microorganisms spread or grow. Contaminants such as bacteria and fungi are ubiquitous, meaning they exist everywhere, and they are able to spread or grow as well. Epidemiology is the study of how, when, where, what, and who are involved in the spread and distribution of diseases. The experiment presented was designed to study the epidemic of microorganisms in or on an object of our everyday
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are living organisms (such as bacteria, fungi, viruses) which are too small to even be seen with the naked eye but visible under a microscope also named microbe. There are five types of living micro organisms these are bacteria, viruses, fungi, protozoa and algae. Microorganisms are widespread in nature and are beneficial to life, but some can cause serious harm. They can be divided into six major types: bacteria, archaea, fungi, protozoa, algae, and viruses. Bacteria are unicellular organisms. The
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community that initially dominated in the deep-water plume samples. This changed when the well was capped and the group that dominated was methanotrophs or oil-degraders. None of the initial groups were found in the surface water samples, instead bacteria such as Alphaproteobacteria and Cyanobacteria were found to be the most abundant organisms in these collected samples. This suggests that the temperature of the water plays a direct role in how the microbial community responds to hydrocarbons. Another
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