Microbiology Test Questions Essays

Microbiology Test Questions Essays Microbiology Test Questions Essay Microbiology Test Questions Essay A complex aggregation of microbes, often found on a solid surface, is called a thin film of microorganisms on the surface of a microscope slide is a(n) 9. 110. The gelatinous covering around the cell wall of many microorganisms is called ; a resistant, dormant structure formed within a bacterium that protects t T I room extreme environmental contraltos Is a(n) 1 1. /12. The science of classifying organisms is called the study of the evolutionary history of organisms is called Microbiology 233/Dry. Braun/Practice Test #1 2 13. 114. A pure culture of organisms is called a(n) genetically related groups are called 15. The highest level of classification is called a(n) SHORT ANSWER. (40 points) 16. A. Name the groups at the level of classification referred to in #15. B. What is the basis for distinguishing the groups at this level? 17. Compare and contrast the theories of spontaneous generation and bossiness. 18. A. Briefly state Kochs Postulates. B. Why are these important? Mollycoddled 233/Dry. Braun/Practice lest # 19. A. In descending order, list the 7 major levels of classification. B. Explain or describe a binomial, in scientific nomenclature. Give 2 specific examples. 20. List the 4 major groups of eukaryotic organisms, and the key characteristics of each one. B. Microbiology 233/Dry. Braun/Practice Test #1 4 TRUE / FALSE. (30 points) Circle TRUE or FALSE for each statement. Extra Credit: For each statement you think is false, correct it by crossing out the word(s) that make it false and adding word(s) to make it true. Do not rewrite the whole statement. 21. Microorganisms are identified and classified according to various methods, including morphological features, biochemical tests, differential staining and the type of virus a bacterium is susceptible to. TRUE / FALSE . Methods of comparing the DNA of different organisms include: DNA fingerprinting, Southern blotting, serological testing and nucleic acid habitation. TRUE / FALSE . Both DNA and RNA can be used to identify microbes. 24. Phylogeny relationships can be determined by a molecular clock, which is based on the fact that genetic mutations occur at a fairly constant rate over time. 25. Archaic include both gram-negative and gram-positive bacteria, but none are pathogenic. 26. Photosynthetic bacteria include Contractible, green and purple bacteria, and allotrope- bacteria; oxygen is produced only by the bacteria that use sulfur as an electron acceptor. Gram-positive Etcetera are leave Into 2 groups, oases on ten amount AT and cytosine they have in their DNA. Guanine 28. The main difference between fungi and bacteria is the chemical composition of their cell walls. FALSE Microbiology 233/Dry. Braun,prance -rest 5 29. The main difference between algae and plants is that algae do not have roots, stems and leaves. Helmets are multicultural eukaryote that have various organ systems, except arms, which rely on their hosts for vital functions. Parasitic 31. MATCHING. Microscopy (10 points) Detailed view of internal structures of living microbes. A. Phase-contrast Magnification up to xx; oil improves resolution. Electron Darkled Uses 2 beams of light to improve resolution. B. Con-Focal C. Scanning D. E. -row- Maps atomic and molecular shapes; intracellular temper atures. Photon Fluorescence Deep images of cells in tissues; active cells in real time. G. Scanned-Probe Pathogenic microbes within cells and tissues. Brightened l. Transmission Electron Live microbes that cannot be viewed by other methods. Scanning Acoustic Extremely clear Interference Contrast 2-monsoonal Images. Detrimental High resolution; 3-D view; different layers of a specimen. Living cells attached to another surface, such as cancer cells and arterial plaque. Microbiology 233/Dry. Braun/Practice Test #1 6 32. List the 5 phyla of Bacteria, the key characteristics of each one, and a specific example (40 points) Phylum Key Characteristics with its importance to human beings or the environment. Specific organism its importance

Narrative Essay Ideas and Advice

Narrative Essay Ideas and Advice Narrative Essay Ideas and Advice A narrative essay is a person anecdote or story. It is usually written in the first person and almost always is an account of the writer’s personal experience. Writing a narrative essay allows students to express themselves creatively and address issues that they have personally experienced. These essays are quite popular among students as it is impossible to be factually wrong about a personal story. This limits the need for research. This does not mean that there are no pitfalls that exist, however. For example, before a student can even begin to write, they must have a few interesting narrative essay ideas. They must also use good spelling and grammar, descriptive language, and write with a purpose in order for their essay to be deemed a success. With this in mind, we have created this post with two goals in mind. The first is to provide students with a lot of great essay ideas. The second is to help each student reading this post to write an organized, well-formatted, and extremely readable essay. Great Ideas for a Narrative Essay Here are some ideas that you can use as food for thought as   you begin selecting the perfect topic for your narrative essay: What has been your best experience so far as a college student? Write about a time when you were really frightened? Describe meeting your current boyfriend or girlfriend. Has anybody thrown you a surprise party? What was that like? Describe your favorite place What did you do on your last road trip? Plan the ideal week long vacation What was the last thing you did with your best friend When was the last time that you were completely unsure of how to handle a problem? What was the best piece of advice you ever received? How did you use it? Have you ever traveled to a foreign country? Have you ever climbed a mountain, gone backpacking, or experienced some other travel adventure? Technical Advice on Writing a Narrative Essay A student who has a great idea and a creative mind is already off to a good start when it comes to writing a great narrative essay. However, before they get started, it is very important to think about some technical issues. A big part of this is spelling and grammar, but there is more to it than that. Students must put a lot of thought into the way that they are going to tell their story to their readers. One way to write a narrative essay is to use a storytelling format. If a student wants to use this format that is fine. They simply must include all of the elements that one would expect in a story. This means a plot, climax, introduction, and conclusion. Another option that students have is to write their narrative essay as a classically formatted essay. This would mean starting with an introductory paragraph that includes a thesis. The thesis could be related to a lesson that was learned or a conclusion the writer reaches after experiencing something. How to Begin a Narrative Essay Starting an essay can be quite difficult. This is no different when it comes to the narrative essay. Sometimes the best way to begin is with a bit of a sneak peak. Here is an example: I felt my stomach jump into my chest when I saw the red and blue lights flashing behind me. What I didn't know was that the speeding ticket I was about to receive would be the best thing that ever happened to me. This is an easy and excellent way to kick off any narrative essay.