Student: Yi-Ren Wang Course: BIO-205 BD2 Microbiology Instructor: Dirk VandePol Date: 6/21/2013 Streak Plate Isolation for Obtaining Pure Culture 1. When an agar plate is inoculated‚ why is the loop sterilized after the initial inoculation in put on? Ans: We use agar plate to inoculate microbes by zipping the loop on the agar several times. We streak on the agar plate four time‚ propose is to isolate the unknown bacteria. Therefore‚ the first time to streak on the plate‚ there are
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Robert Koch had been interested in studying anthrax and later went on to other diseases. He had found some sticks inside of the animals dead from anthrax and wanted to prove that the sticks he had found grew. Therefore‚ he took pieces of silver and dropped them into the blood of the sheep dead from anthrax so that he could place a piece into the body of a mouse. The next morning‚ the mouse was dead and on the inside‚ Koch dad located the sticks‚ proving that they grew and were the cause of anthrax
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descriptions of microorganisms? 3) How did Louis Pasteur dismantle the theory of spontaneous generation in bacteria? 4) Who established microorganisms as the causative agent of infectious disease? How did he do this? What was the result of this body of work? 5) What are some of the advancements that were made possible once microorganisms were identified as the causative agents of infectious disease. 6) What are some of the future challenges in battling microorganism? Why are
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Although‚ the function of a cornea is to protect from harmful microorganisms‚ it is also vulnerable to those same unicellular organisms. One of the major diseases affecting the cornea is a corneal ulcer. A corneal ulcer is an "non-penetrating erosion‚ or open sore in the outer layer of the cornea‚ the transparent area at the front of the eyeball" (Medlineplus). Corneal Ulcer has many different names‚ depending on the microorganism that causes the ulcer. Some of the major diseases include Bacterial
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Bioleaching of Gold Ore Table of Contents Title Page i Table of Contents ii ABSTRACT iii 1. INTRODUCTION 4 2.1 HISTORICAL OVERVIEW OF BIOLEACHING 4-5 2.2 TYPES OF BIOLEACHING 5-7 2.3 GOLD ORES APPLICABLE TO BIOLEACHING 7 2.4 PRINCIPLES OF BIOLOGICAL GOLD ORE TREATMENT 7-9 2.5 OPTOMIZING THE BIOLEACHING PROCESS 9-11 2.6 ADVANTAGES OF BIOLEACHING OF GOLD ORE 11 2
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Point and Nonpoint Pollution Sources Point Sources Point-source pollutants in surface water and groundwater are usually found in a plume that has the highest concentrations of the pollutant nearest the source (such as the end of a pipe or an underground injection system) and diminishing concentrations farther away from the source. The various types of point-source pollutants found in waters are as varied as the types of business‚ industry‚ agricultural‚ and urban sources that produce them. Commercial
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self-esteem Personal identity * I like Mozart‚ I am a quiet person‚ I am prone to minor episodes of depression Social identity * I am a South African‚ I am female‚ I am Muslim Key facets of Social Identity Theory: The importance and ubiquity of categorization * People have a strong tendency to mentally organize things and people (including themselves) into categories To the extent that we associate ourselves with groups (i.e. categorize ourselves)‚we have social identities
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theLive CD or a Live USB drive. The Ubuntu OS can run directly from the CD (although this is usually slower than running Ubuntu from an HDD)‚ allowing a user to "test-drive" the OS for hardware compatibility and driver support. The CD also contains the Ubiquity installer‚[50]which can then guide the user through the permanent installation process. CD images of all current and past versions are available for download at the Ubuntu web site.[51] Installing from the CD requires a minimum of 384 MB of RAM (as
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other substance from the digestive tract through lymphatic vessels called lacteals located in the lining of the small intestine. * Fat enters the lacteals and pass through the lymphatic vessels to the venous circulation. 3. Defense * Microorganism and other foreign substance are filtered from lymph by lymph nodes and from blood by the spleen. Anatomy of the lymphatic system A. Lymphatic capillaries and vessels * Lymphatic vessels carry lymph away from the tissues. Valves in the
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shapes of a virus Answer | | | | | Selected Answer: | capsid | Correct Answer: | capsid | | | | | Question 5 2 out of 2 points | | | The Dutch merchant who made and used quality magnifying lenses to see and record microorganisms was Answer | | | | | Selected Answer: | Antonie van Leeuwenhoek | Correct Answer: | Antonie van Leeuwenhoek | | | | | Question 6 2 out of 2 points | | | Which of the following characteristics refers to the microscope’s
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