Download Bacteria and Virus es Assignment

Assignment on Bacteria and Viruses
Name……………………..
1. Describe the biological classification of bacteria.
Date…………………………..
2 Draw a generalized bacterial cell and label its parts.
3 Explain what a Gram stain is and what it is used for.
4 Draw and label the different shape classes
5. Describe the ways that bacteria can obtain energy.
6. Describe the modes of releasing energy seen in bacteria. Don’t forget the role of oxygen!
7. How can bacteria move?
8. Describe bacterial reproduction. Consider the process, the frequency, the potential for genetic
diversity in a bacterial colony.
9. Draw and label a standard bacterial growth curve.
Define: Lag phase
Exponential phase
Stationary phase
Death phase
10. List roles of bacteria in the environment that humans consider beneficial (not botox!)
11. Describe ways that bacteria can increase genetic variability.
12. Describe ways that we decrease the rate of bacterial contamination in foods.
Viruses
13. Draw and label a generalized virus.
14. Are viruses alive? Support your answer.
15. Explain how viruses can be specific for a particular host.
16. Describe the events of the viral lytic cycle.
17. Describe the viral lysogenic cycle. What do you call a bacteriophage when it is in a lysogenic
cycle?
18. What is a retrovirus? Give an example of one.
Immunity
19. What does it mean to be immune?
20. How does a vaccine help build immunity?
21. What provides your main defense against pathogens?
22. Compare and contrast a nonspecific and a specific immune response.