Download Understanding Viruses Video Questions

Name_______________________________Date_______________Period__________
Understanding Viruses Video
1. Without a cell to invade they (the viruses) wait in a ______________________ form
somewhere between life and death.
2. Viruses are pieces of ________________________________ wrapped in a
_______________ coat.
3. How long ago was small pox recorded in Chinese history?
4. The best light microscopes can only magnify 2000 x. ….How much magnification is
needed to see a virus using an electron microscope?
5. The shell (of the AIDS virus) is studded with molecules that enable it to
______________ with a target cell and work its way inside.
6. Viruses are highly specific. Rabies targets the ________________.
Mumps infects only the ____________________________. Hepatitis invades the
___________________ .
7. In 1918, there were more people killed by ______________ then were killed in World
War I.
8. What risky experiment did Dr. Jenner perform on his own infant son?
9. What part of the immune system performs each function.
Recognition _____________________
Destruction _____________________
Memory ______________________
10. What part of the immune system does a vaccine rely upon?
11. The flu virus has found its way around the immune system by
______________________________.
12. How much a virus can change (mutate) depends on how it is made. If its genetic
material is DNA it is pretty ________________ . RNA viruses are ______________ .
13. This explains why the vaccine for a DNA virus like smallpox _____________ while
RNA viruses like influenza ____________________________ .
14. Salk made the first vaccine that allowed people to gain immunity without having any
symptoms of the disease. How did he achieve this for the polio vaccine?
15. What virus was eradicated? What year did the last case occur?
16. How is the hanta virus spread?
17. In the future, we can expect to see more viruses used in gene therapy as
_________________ to introduce new genes.
18. Researchers are in the beginning stages of using a virus’s ability to
___________________________________ to alter genetic defects.