of disease Pilus- protein structures on the surface of some bacteria Halophile- Salt loving Achaea that live in environments with very high salt concentration Prokaryote- single celled organisms‚ lack membrane bound nucleus Zoonosis- A disease that can be passed down from animals to humans Endospore- When Gram positive bacteria can form a thick coated‚ resistant structure Compare and contrast Gram positive and Gram negative bacteria. Gram negative- Dyes red its more complicated and has less
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article is titled Nitrogen Fertilization Changes Abundance and Community Composition of Ammonia-Oxidizing Bacteria. I liked the research and believe that it is very thorough I also understand the importance of bacteria on soil health. Shen‚ W.‚ Lin‚ X.‚ Gao‚ N.‚ Shi‚ W.‚ Min‚ J.‚ & He‚ X. (2011). Nitrogen fertilization changes abundance and community composition of ammonia-oxidizing bacteria. Soil Science Society of America Journal‚ 75(6)‚ 2198-2205. Retrieved from http://search.proquest.com/docview/909942088
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resistance occurs when an antibiotic is no longer effective against a particular bacteria‚ making that organism resistant to the effects of the antibiotic. Bacteria become resistant due to selective pressure. Those organisms which resist the antibiotic‚ and do not die from it ’s effects have a greater chance of survival within the host‚ therefore allowing them to reproduce and spread it ’s resistance to other bacteria. while the ones susceptible to the antibiotics die. This can be caused by unnecessary
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Abstract Some bacteria are able to go through transformation making new combinations of genes. Transformation is a way of gene variability in bacteria. This experiment is based on the transformation mechanism of bacteria and gene regulation. The bacteria used for the experiment was Escherichia coli and the genes introduces for the transformation were: gfp and bla by a pGLO™ plasmid. After the insertion of the target genes and growing the bacteria on specialized LB media‚ it could be seen that the
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At the beginning of the semester‚ samples of bacteria were obtained from various sources. Two bacterial colonies were isolated from plates that were incubated in the lab and these bacteria became the basis for this project. The bacterial cultures were maintained and used for various physiological‚ cultural‚ and biochemical tests and observations over several weeks. The purpose of culturing bacteria over half the course of the semester was to learn various techniques used in microbiology labs and
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allowed entry of air‚ and yet excluded ________. | | oxygen | | | nutrients | | | airborne bacteria | | | broth | | | heat | Question 4 | | 1 / 1 point | Pasteurization was first developed to kill ________ in wine. | | endospore-producing bacteria | | | all bacteria | | | disease-causing bacteria | | | antibiotic-producing bacteria | | | spoilage bacteria | Question 5 | | 1 / 1 point | Robert Koch’s studies on Bacillus anthracis established a sequence
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Lecture 14 Lecture Gene Complementation in Bacteria In order to perform tests for dominance or for complementation in bacteria we need a way to make the bacteria diploid for part of the chromosome. To do this we need to consider a different extrachromosomal element: Ori T The F plasmid (length 105 base pairs) Tra genes There are some special terms to describe the state of F in a cell: F– refers to a strain without any form of F‚ whereas F+ refers to a strain with an F plasmid. F‚
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Question: Suppose a meteor impact blows some extremophile bacteria from the Earth into the depths of a gas giant planet called planet X ‚ where they evolve into an intelligent species which practises physics. Do you think their physical theories would be similar to ours‚ and if so in what ways would they be likely to be similar? Your answer will necessarily involve some speculation‚ but make sure it involves some careful argument as well. Theoretical physics is one of many braches of physics that
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Cells Now we need to discuss CELLS. You’ve probably heard of cells‚ and may even know of a few‚ such as blood cells‚ nerve cells‚ or skin cells. What are these things called cells? Cells are the smallest living things. You’ll be learning a lot about cells in this course. For now‚ however‚ I’ll introduce you to just a few basic things about them. Cells are extremely tiny organisms that carry out all of the functions of life inside a thin layer of “skin” called (unimaginatively) the CELL MEMBRANE
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Definition for antibiotic resistant bacteria: WebMD definitions: Antibiotic resistance is a type of drug resistance where a microorganism is able to survive exposure to an antibiotic. Genes can be... en.wikipedia.org/wiki/Antibiotic-resistant_bacteria Antibiotics were designed to kill bacterium that infect us. Unfortunately‚ they are indiscriminate and also kill the good bacterium that are mostly found in the large intestinal tract. This leaves a person open to reinfection‚ or other more
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