Viruses+7.1-CMP

7.1 (p.122-124) and Avian Flu p. 125

1. Why are viruses not exactly living or nonliving? They are not made up of cells and canNOT live independently (anticellular). ACELLULAR 2. Give some examples of diseases caused by viruses. Cold, Flu, Measles, Chicken, Pox, Polio, Rabies, Aids, Genital Warts, and Genital Herpes 3. What is the basic structure of a virus? (The two parts and their function) They contain and inner core made up of nucleic acid and an outer capsid which is made of protein. 4. Why are viruses like microscopic pirates? They control their host cell, and make it do whatever they want it to. 5. Why are viruses considered parasites? They consist of a large clump of cells in one area.HARM THE HOST 6. Why are viruses considered OBLIGATE parasites? They control their host cells and manipulate other cells around.CAN ONLY LIVE IN A HOST AND HARM IT 7. Why do viruses ALWAYS cause disease? They divide and spread through the body very rapidly. CAN ONLY LIVE AND REPRODUCE IN A HOST AND HARM IT IN DOING SO 8. How do viruses "emerge" and "spread" each year? Give examples. They are able to do this through animals such as bugs and flies that are in constant contact with humans. Through this, viruses spread very quickly and can not be controlled to some extent. Infected birds is where the flu comes from every year, and it somehow makes its rounds to lots of people before the year is over. MUTATION EVOLUTION 9. What is a virus vector? Give examples, A virus vector is an animal that carries the disease, such as birds or mosquitoes. 10. What is the relationship of bird flu to birds? Infected birds get the flu, and as a result it spreads by people eating infected chicken or by virus vectors transmitting them to humans. 11. How does bird flu infect humans? If a person eats chicken that had been infected, that person would become infected as well. 12. What is a pandemic? It is a virus that can survive in both humans and animals.A WORLD WIDE OUTBREAK OF DISEASE 13. Why is there fear that bird flu could cause a pandemic? It has to be genetically different from other diseases in order to infect and survive in both humans and animals. 14. What action can we take to prevent a bird flu pandemic? Quarantine the infected birds in order to prevent the disease from spreading through the world.