AP+7.1+Avian+Flu+Questions

7.1 (p.122-124) and Avian Flu p. 125 1. Why are viruses not exactly living or nonliving?
 * Viruses are not exactly living and non living because they can be stored on a self or they can be in your body living by replicating in cells.

2. Give some examples of diseases caused by viruses.
 * Flu, colds, 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)
 * one is the outer capsid composed of protein units
 * two is an inner core of nucleic acid

4. Why are viruses like microscopic pirates?
 * because they metabolic machinery of a host cell USE THE METABOLIC MACHNINERY

5. Why are viruses considered parasites?
 * because virus grows and feed on feeds on cells HARMS CELL, USES CELL

6. Why are viruses considered OBLIGATE parasites?
 * because they are able to exist or survive only in a particular environment such as inside of the body INSIDE A CELL

7. Why do viruses ALWAYS cause disease?
 * because a mutation allows a virus to use a new and different insect vector.
 * they are always inside of a cell, and will eventually kill every cell they live in

8. How do viruses "emerge" and "spread" each year? Give examples.
 * Viruses emerge when being transported from one location to a new location when it has not been before. An example of this is the Flu because it has moved from one country to another
 * Viruses spread when they change range from animals to humans such as the West Nile virus.

9. What is a virus vector? Give examples
 * Something that carries a virus. An example of this is a mosquito.

10. What is the relationship of bird flu to birds?
 * When birds come in contact with salivai, feces and mucus other birds will get infected and start to spread from one bird to another. It would spread so fast that it would be hard to control.

11. How does bird flu infect humans?
 * Bird flu infects humans when the human comes in contact with the avian flu. If a human has the flu and then gets infected with the bird flu then the virus could swap genes and create a hybird.

12. What is a pandemic?
 * is when there is a widespread of a disease from one virus to another WIDESPREAD DISEASE (ACROSS THE PLANET)

13. Why is there fear that bird flu could cause a pandemic?
 * there is a fear that the bird flu could cause a pandemic because the virus could MUTATE TO spread very quickly from one person to another.

14. What action can we take to prevent a bird flu pandemic?
 * to prevent bird flu pandemic people could get tested before flying to other countries if they have the flu so to the virus won't come in contact with each other.
 * you could prevent people from flying from one country to another if they have not been tested.