Guide Bio 202 Chapter 13 Differentiate a virus from a bacterium Describe the chemical and physical structure of both an enveloped and a nonenveloped virus. (Include a description of the envelope‚ capsid‚ and core The nucleic acid of a virus is protected by a protein coat called the capsid. The structure of the capsid is ultimately determined by the viral nucleic acid and accounts for most of the mass of a virus‚ especially of small ones. Each capsid is composed of
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July 27‚ 1976 | Very 1st person to contract Ebola virus began to show symptoms. Ten days later he was dead | 1976 | These chemicals‚ the team found‚ target the protein encoded by the NPC1 gene identified as essential by the other research group. By binding to the NPC1 gene product in the endosome‚ the drug molecules appear to prevent ebola from being able to attach itself‚ preventing it from bursting the endosome bubble and escaping into the cell. | September 1‚ 1976 | Ebola-Zaire (ZEBOV)ZEBOV
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References……………………………….............................................9 Abstract The functional unit of the human immunodeficiency virus type 1 (HIV-1) envelope glycoproteins consist of compact trimers of noncovalently associated gp120 exterior glycoproteins and gp41 transmembrane glycoproteins.The glycoproteins so called spikes have the role in virus-cell attachment and is of particular importance and is the major target for vaccine design. The lability of intersubunit interactions has hindered
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capsid is a protein layer that wraps around the virus. There are four basic shapes of viruses. The tobacco mosiac‚ adenovirus‚ influenza virus‚ and t-even bacteriophage are each examples of a different virus structure. Each individual protein subunit composing the capsid is a capsomere. The tobacco mosiac virus has a helical capsoid and is rod shaped. The adenovirus is polyhedral and has a protein spike at each vertex. The influenza virus is made of a flexible‚ helecal capsid. It has
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Literary Analysis and Composition II (Sem2) | What’s Important | Lesson 4 LACII Unit 1‚ Lesson 4 Self-Check Answers Vocabulary: Words in Context Read the sentences below. Use the context clues to determine the meanings of the new words. Check your answers using the definitions at the bottom of the pages 57–58 of your Explorations anthology. 1. Graham admired the scholars he met while working at the library because they never seemed to tire of learning new things or seeking out original ideas
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herpes simplex virus type 1. The viral infection is characterized as painful and generally last for about two weeks. It is a very contagious disease and can affect anyone‚ regardless of age. Cold sores spread oral-to-oral and are diagnosed by examination or test. Herpes labialis primarily spreads through oral-to-oral contact but also from oral to skin surfaces. For instance‚ cold sores can be transmitted from kissing‚ oral sex‚ sharing the same utensils or lip balm. Because the virus
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example‚ the name of the bacteria‚ virus‚ or parasite. a. Norovirus‚ more commonly known as food poisoning or gastroenteritis‚ is caused by several distinct groups of viruses in the Caliciviridae family of viruses. The family name is derived from the Latin word chilice – callx- which means cup-like. These viruses are single-stranded small round structured viruses that are blue in color‚ also known as SRSV’s. These structures have proteins surrounding the virus’ material and the surface has indentations
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genetically altered a deadly flu virus (H5N1) to make it more contagious. The two teams consisted of scientist from Erasmus Medical Center‚ in the Netherlands‚ and the other at the University of Wisconsin (McNeil & Grady‚ 2012). Some argued that the research should have never been done‚ while others believe that the research may be beneficial for finding vaccines and antiviral drugs to combat the virus. There is one point on which the factions agree: The ability of a virus to spread easily from person
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capable of fighting off most bacterial infections so they can mainly be treated with antibiotics. A viral infection is a type of infection by a virus. It is one in which is spreaded by a virus that is pathogenic to human beings. They are much smaller than bacteria and it is much more difficult to kill a virus than it is to kill bacteria. A virus can’t grow or exist without any host cells. It could cause illnesses as minor as the common cold or as severe a AIDS. Unlike Bacterial Infections‚
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ENCEPHALITIS is a severe inflammation of the brain‚ encephalitis is usually caused by a mosquito-borne or‚ in some areas‚ a tick borne virus. Viruses transmitted by anthropods are arboviruses (arthropodborne). Referred to as infectious viral encephalitides‚ encephalitis may occur also as a complication of systemic viral diseases such as poliomyelitis‚ rabies‚ or mononucleosis‚ or it may arise after recovery from viral infections such as rubella or rubeola. SYNONYMS OR OTHER NAMES OF THE DISEASE
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