Test Date - Humble ISD
... Protein Coat – The DNA or RNA is surrounded by a protein coat called a capsid. The proteins making up the capsid are known as ________________________ and play an important role in the __________________________ of the virus. In addition, the capsid has __________________ ID tags known as ________ ...
... Protein Coat – The DNA or RNA is surrounded by a protein coat called a capsid. The proteins making up the capsid are known as ________________________ and play an important role in the __________________________ of the virus. In addition, the capsid has __________________ ID tags known as ________ ...
Viruses Lecture 1
... Small Pox Ebola – filamentous form – 60-80nm in diameter, on average 1000 nm long (but highly variable) Chickenpox virus Polio Virus Influenza virus HIV virus Hepatitis – this one actually Hepatits B magnified 120,000X Foot and Mouth disease – 1967 outbreak in the UK saw the destruction of 400,000 ...
... Small Pox Ebola – filamentous form – 60-80nm in diameter, on average 1000 nm long (but highly variable) Chickenpox virus Polio Virus Influenza virus HIV virus Hepatitis – this one actually Hepatits B magnified 120,000X Foot and Mouth disease – 1967 outbreak in the UK saw the destruction of 400,000 ...
Bacteria_Vs_Virus_16 - Kenston Local Schools
... the host cell they hijack the cell & release their DNA into the cell. It can take over immediately or lie dormant for years The host cell does all the work, the viruses just gives the orders ...
... the host cell they hijack the cell & release their DNA into the cell. It can take over immediately or lie dormant for years The host cell does all the work, the viruses just gives the orders ...
Worked on Tobacco Mosaic Virus
... What happens to viruses once they infect an organism? * Name some viruses and what they do ...
... What happens to viruses once they infect an organism? * Name some viruses and what they do ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 8. F factor plasmids play a major role in transcription. 9. Viruses largely lack metabolic machinery of their own to synthesize proteins. 10. Hyperplasia is the uncontrolled proliferation of cells. III. Complete the following ...
... 8. F factor plasmids play a major role in transcription. 9. Viruses largely lack metabolic machinery of their own to synthesize proteins. 10. Hyperplasia is the uncontrolled proliferation of cells. III. Complete the following ...
Classical Swine Fever (CSF)
... and interleukin 6 (IL-6). In spite of the fact that the viruses that cause ASF and CSF are very different, the pathogenesis of the two diseases appears to be almost identical, which explains the similarity in presentation of the two diseases in pigs. After primary replication in the tonsils, the vir ...
... and interleukin 6 (IL-6). In spite of the fact that the viruses that cause ASF and CSF are very different, the pathogenesis of the two diseases appears to be almost identical, which explains the similarity in presentation of the two diseases in pigs. After primary replication in the tonsils, the vir ...
classic_swine_fever_3_pathogenesis
... increased vascular permeability as a result of the effect of inflammatory mediators and impaired clotting ability owing to consumption coagulopathy. Death from acute CSF is most likely due to the severe circulatory disturbances that result in widespread haemorrhages. The pathogenesis of chronic CSF, ...
... increased vascular permeability as a result of the effect of inflammatory mediators and impaired clotting ability owing to consumption coagulopathy. Death from acute CSF is most likely due to the severe circulatory disturbances that result in widespread haemorrhages. The pathogenesis of chronic CSF, ...
General Virology - California State University, Fullerton
... – Hijacks protein synthesis from cell(binding cell factors) – Needed to bind to similar viral protein for transcription Potential drug target in red tunnel ...
... – Hijacks protein synthesis from cell(binding cell factors) – Needed to bind to similar viral protein for transcription Potential drug target in red tunnel ...
Kingdom: Viruses
... Virus identifies and infects a host cell Virus takes control of cell’s organelles (namely the ribosomes) and self replicates using the materials within the cell. Once new viruses are generated, the virus causes the host cell to lysis(break open) and release the newly created viruses. ...
... Virus identifies and infects a host cell Virus takes control of cell’s organelles (namely the ribosomes) and self replicates using the materials within the cell. Once new viruses are generated, the virus causes the host cell to lysis(break open) and release the newly created viruses. ...
Avian Influenza – The Bird Flu
... (H5 and H7 subtype) and one outbreak of highly pathogenic avian influenza A (H5N2) in poultry. ...
... (H5 and H7 subtype) and one outbreak of highly pathogenic avian influenza A (H5N2) in poultry. ...
Ch.19 Bacteria Viruses
... 3. Spore Formation occurs when conditions become ______________________. Endospore - ...
... 3. Spore Formation occurs when conditions become ______________________. Endospore - ...
الشريحة 1
... Avian Influenza H5N1 •An outbreak of Avian Influenza H5N1 occurred in Hong Kong in 1997 where 18 persons were infected of which 6 died. •The source of the virus was probably from infected chickens and the outbreak was eventually controlled by a mass slaughter of chickens in the territory. •However, ...
... Avian Influenza H5N1 •An outbreak of Avian Influenza H5N1 occurred in Hong Kong in 1997 where 18 persons were infected of which 6 died. •The source of the virus was probably from infected chickens and the outbreak was eventually controlled by a mass slaughter of chickens in the territory. •However, ...
chapter 4 review
... CHAPTER 5 REVIEW VIRUS: pg. 84 & 85 Size Extremely small Need electron microscope to see them Shape Varies Structure Protein coat (outside) DNA (inside) (see drawing) How are viruses different from living cells? (see study sheet 2) Viruses cannot do the 4 life processes Viruses are non living Viruse ...
... CHAPTER 5 REVIEW VIRUS: pg. 84 & 85 Size Extremely small Need electron microscope to see them Shape Varies Structure Protein coat (outside) DNA (inside) (see drawing) How are viruses different from living cells? (see study sheet 2) Viruses cannot do the 4 life processes Viruses are non living Viruse ...
File
... Causes of Communicable Disease: organisms that cause disease are called pathogens there are five different types of pathogens: viruses bacteria fungus protozoans rickettsias infections happen when pathogens enter the body, multiply, and damage body cells diseases devel ...
... Causes of Communicable Disease: organisms that cause disease are called pathogens there are five different types of pathogens: viruses bacteria fungus protozoans rickettsias infections happen when pathogens enter the body, multiply, and damage body cells diseases devel ...
ppt version
... Influenza virus (-ssRNA) • The influenza HA spike protein is shaped like a ‘Toblerone’ chocolate bar and protrudes from the virus surface (500 spikes on each virion) • each spike composed of three identical subunits with a bulb-shaped hydrophilic portion furthest from the viral ...
... Influenza virus (-ssRNA) • The influenza HA spike protein is shaped like a ‘Toblerone’ chocolate bar and protrudes from the virus surface (500 spikes on each virion) • each spike composed of three identical subunits with a bulb-shaped hydrophilic portion furthest from the viral ...
Viruses - Humble ISD
... 1. Virus _____________ to the cell ____________________ of the host cell 2. Trick cell into allowing it inside 3. Virus releases its __________________________ (DNA or RNA) into the host cell - ____________________ – Viral DNA is ____________ - Transcription – Viral _______ is converted into _______ ...
... 1. Virus _____________ to the cell ____________________ of the host cell 2. Trick cell into allowing it inside 3. Virus releases its __________________________ (DNA or RNA) into the host cell - ____________________ – Viral DNA is ____________ - Transcription – Viral _______ is converted into _______ ...
DIVERSITY OF LIVING THINGS
... The kingdom is the largest group and very broad. Each successive group contains fewer organisms, but the organisms are more similar. The species is the smallest group and is very narrow. Organisms within a species are able to mate and produce fertile offspring. ...
... The kingdom is the largest group and very broad. Each successive group contains fewer organisms, but the organisms are more similar. The species is the smallest group and is very narrow. Organisms within a species are able to mate and produce fertile offspring. ...
pathogen
... S Diseases may be inherited or caused by many other factors. S An infectious disease is one caused by a pathogen. ...
... S Diseases may be inherited or caused by many other factors. S An infectious disease is one caused by a pathogen. ...
PART FIVE: QUESTIONS 21-25
... of molecules known as lipids, such as oils, fats and cholesterol. The researchers found that at temperatures slightly above freezing, this lipid covering turned into a gel. However, as temperatures approached 15.6C (60F), the covering gradually melted. The researchers concluded that temperatures in ...
... of molecules known as lipids, such as oils, fats and cholesterol. The researchers found that at temperatures slightly above freezing, this lipid covering turned into a gel. However, as temperatures approached 15.6C (60F), the covering gradually melted. The researchers concluded that temperatures in ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 8. Sex Pili participate in the transfer of DNA from one bacterium to another. 9. Rubella virus grows well in chorioallantoic membrane of the embryonated eggs. 10. Animal virus has receptor sites that attach to the attachment sites on the host cell surface. III Complete the following: (5 x 1 = 5) 11. ...
... 8. Sex Pili participate in the transfer of DNA from one bacterium to another. 9. Rubella virus grows well in chorioallantoic membrane of the embryonated eggs. 10. Animal virus has receptor sites that attach to the attachment sites on the host cell surface. III Complete the following: (5 x 1 = 5) 11. ...
Viral Disease - School Portal
... only said to have AIDS when the symptoms of one of the diseases known to be related to AIDS appears. d. In an HIV-infected person, a pathogen entering the bloodstream activated infected helper T cells, which activates the viral DNA. Instead of the normal immune response, the helper T cell produces m ...
... only said to have AIDS when the symptoms of one of the diseases known to be related to AIDS appears. d. In an HIV-infected person, a pathogen entering the bloodstream activated infected helper T cells, which activates the viral DNA. Instead of the normal immune response, the helper T cell produces m ...
Bacteria and Viruses
... Controlling Bacteria • Pasteurization – heating product to a temperature that will kill most bacteria • Sanitation • Vaccines – a preparation of killed or weakened pathogens introduced into the body to produce immunity • Antibiotics – chemical that destroys or inhibits the growth of bacteria ...
... Controlling Bacteria • Pasteurization – heating product to a temperature that will kill most bacteria • Sanitation • Vaccines – a preparation of killed or weakened pathogens introduced into the body to produce immunity • Antibiotics – chemical that destroys or inhibits the growth of bacteria ...
Social history of viruses
The social history of viruses describes the influence of viruses and viral infections on human history. Epidemics caused by viruses began when human behaviour changed during the Neolithic period, around 12,000 years ago, when humans developed more densely populated agricultural communities. This allowed viruses to spread rapidly and subsequently to become endemic. Viruses of plants and livestock also increased, and as humans became dependent on agriculture and farming, diseases such as potyviruses of potatoes and rinderpest of cattle had devastating consequences.Smallpox and measles viruses are among the oldest that infect humans. Having evolved from viruses that infected other animals, they first appeared in humans in Europe and North Africa thousands of years ago. The viruses were later carried to the New World by Europeans during the time of the Spanish Conquests, but the indigenous people had no natural resistance to the viruses and millions of them died during epidemics. Influenza pandemics have been recorded since 1580, and they have occurred with increasing frequency in subsequent centuries. The pandemic of 1918–19, in which 40–50 million died in less than a year, was one of the most devastating in history.Louis Pasteur and Edward Jenner were the first to develop vaccines to protect against viral infections. The nature of viruses remained unknown until the invention of the electron microscope in the 1930s, when the science of virology gained momentum. In the 20th century many diseases both old and new were found to be caused by viruses. There were epidemics of poliomyelitis that were only controlled following the development of a vaccine in the 1950s. HIV is one of the most pathogenic new viruses to have emerged in centuries. Although scientific interest in them arose because of the diseases they cause, most viruses are beneficial. They drive evolution by transferring genes across species, play important roles in ecosystems and are essential to life.