Emma-Virus+Homework

7.1 (p.122-124) and Avian Flu p. 125
 * 1) Why are viruses not exactly living or nonliving?
 * 2) Outside of a host cell viruses basically just chemicals that can be stored. But when the opportunity arises viruses have the ability to replicate inside cells, and during this time they appear to be alive.
 * 3) Give some examples of diseases caused by viruses.
 * 4) colds, flu, measles, chicken pox, polio, rabies, AIDS, genital warts and genital herpes
 * 5) What is the basic structure of a virus? (The two parts and their function)
 * 6) Outer Capsid composed of protein units-viruses gain entry to a host cell because portions of the virus adhere in a lock and key manner with a receptor on the host cell's outer surface.
 * 7) inner core of nucleic acid- viral nucleic acid enters the host cell, nucleic acid codes for the protein units in the capsid.
 * 8) Why are viruses like microscopic pirates?
 * 9) They command the metabolic machinery of a host cell
 * 10) Why are viruses considered parasites?
 * 11) Because they do not live independently
 * 12) Why are viruses considered OBLIGATE parasites?-
 * 13) obligate parasites are able to exist or survive in a particular environment, THEY HAVE NOTHING they have no cell, they cant do a thing without using another cell
 * 14) Why do viruses ALWAYS cause disease?-
 * 15) They are always in cells and replicating, they will eventually kill every cell they live in
 * 16) How do viruses "emerge" and "spread" each year? Give examples.
 * 17) Viruses emerge by being transported from one location to another where it has not been before. Flu strains move from Southeast Asia to the United States each year.SARS was transported from from Southeast Asia to Toronto Canada. West Nile virus has also changed range being transported to the US amd taking hold in bird and mosquito populations.
 * 18) What is a virus vector? Give examples,
 * 19) A virus vector is the transport of a virus, mainly from an insect, that carry diseases from an infected individual to a healthy individual. An example would be if HIV could be transmitted like the common cold instead of sexually. This would result in MANY more people having HIV.
 * 20) What is the relationship of bird flu to birds?
 * 21) Birds are infected when they come in contact with the saliva, feces or mucus of another bird
 * 22) How does bird flu infect humans?
 * 23) If humans come in close contact with birds who are infected.
 * 24) What is a pandemic?
 * 25) Pandemic means a disease that travels world wide.
 * 26) Why is there fear that bird flu could cause a pandemic?
 * 27) There is a fear that the bird flu could merge with a human flu virus. Therefore a new hybrid virus would from the merging of the other two. This new virus could be highly infectious, fatal, and easily transmitted from person to person.
 * 28) What action can we take to prevent a bird flu pandemic?
 * 29) Find a vaccine! We can also remove any birds that are infected or could be potentially infected
 * 1) Why is there fear that bird flu could cause a pandemic?
 * 2) There is a fear that the bird flu could merge with a human flu virus. Therefore a new hybrid virus would from the merging of the other two. This new virus could be highly infectious, fatal, and easily transmitted from person to person.
 * 3) What action can we take to prevent a bird flu pandemic?
 * 4) Find a vaccine! We can also remove any birds that are infected or could be potentially infected