Viruses‚ Viroids‚ and Prions copyright cmassengale 1 Are Viruses Living or Non-living? Viruses are both and neither They have some properties of life but not others For example‚ viruses can be killed‚ even crystallized like table salt However‚ they can’t maintain a constant internal state (homeostasis). copyright cmassengale 2 What are Viruses? A virus is a noncellular particle made up of genetic material and protein that can invade living cells. copyright cmassengale 3 Viral History copyright
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Change over the course of generations 2 Viruses Over 4‚000 different types of viruses Virus have their own genomes‚ but are considered nonliving Must be taken up by a living cell to replicate 3 4 Viral genetics Tobacco Mosaic Virus (TMV) first virus discovered in 1883 Yellow fever: first human virus discovered 1900 5 Differences Host range Number of species and cell types that can be infected Structural All viruses have a capsid (protein coat) but it varies in
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Unit 2 Assignment Critical Thinking 1. Explain why‚ even under ideal conditions‚ Streptococcus grows slowly. Cellular respiration is a process in which glucose is broken down to form an energy that can be used by the cell. There is aerobic respiration and there is anaerobic respiration. Aerobic respiration involves a series of chemical reactions in which oxygen is used to transform into carbon dioxide and H2O. This process generates energy carrying molecules called ATP. Anaerobic respiration
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English 1200 10/20/2012 “The” Tobacco Luxury‚ money‚ power‚ pure; these are the type of words that come to mind when one thinks of a cigar‚ another familiar word is usually Cuba. Cuban cigars contain the finest tobacco in the world and the numbers show for the communist economy as it generated four hundred million dollars last year for Cuba alone according to Money News. The United States which is the largest Cigar market in the world does not even sell Cuban cigars due to a fifty year-long
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Topic : The influence of computer viruses Nowadays ‚ most of our activities need computers .They are an excellent tool to help us solve quickly and effectively almost problems in our life. However‚ the computers are also very sensitive and may work wrongly if they are attacked by computer viruses . In fact ‚ the computer viruses may cause a lot of bad effects for users in which loosing data in computers‚ interupting business communication and stolen personal informations on the internet are
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Table of contents Virus…………………………………………………………………………………………………………………….3 What is a computer virus?………………………………………………………………………………………………3 Effects of Computer viruses……………………………………………………………………………………………3 How to avoid Computer viruses?......................................................................................3 Different kinds of viruses………………………………………………………………………………………………..4 Symptoms of infect…………………………………………………………………………………………………………6 What to do?..........................................
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Are viruses living or nonliving? Scientist all over are debating whether or not a virus is in fact a living organism. There are many different opinions about this touchy topic from many different scientists. My job was to read through all of these different opinions and decided which side I agreed with. Do I think that viruses are living or nonliving? The answer to that question is‚ I absolutely believe viruses are nonliving and ill tell you why. Just because a virus seems alive doesn’t mean
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Dr. Carl James Grindley Art and Civilization I Art 201 12/21/13 Mosaic in Pompeii Pompeii is a city in Rome near modern Naples in the Italian region of Campania. Along with Herculaneum‚ its sister city‚ Pompeii was destroyed‚ and completely buried‚ during a catastrophic eruption of the volcano Mount Vesuvius. The eruption lasted two days on 24 August 79 AD. At the time of the eruption‚ the town could have had a population of about 20‚000 people‚ and was located in an area in which Romans had
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1. Define "typology." How does this method of interpretation help us understand the Mosaic covenant? Typology is a type of symbolism in which “a person or event in one era of redemptive history that has a specific parallel in another era of redemptive history” (p 178). This method of interpretation helps us understand the Mosaic covenant because it foreshadows and parallels the New Law in the New Testament. It helps build the foundation for New Law‚ and it also shows the people that their God is different
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Discuss briefly fluid mosaic model for membrane structure. (6 marks) Answer: The lipids and most of the protein in the plasma membrane are free to bob about‚ sliding from one location in the membrane to another. Because lipids and proteins move about laterally within the membrane‚ the membrane is a fluid mosaic of lipids and proteins. The membrane fluid is since the composition of any location on the membrane can change. In the same manner that a patchwork quilt is mosaic (different fabrics making
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