Download Bacteria Webquest - Nutley Public Schools

Bacteria Webquest
Name: ___________________________
Objective: This is to introduce you to the world of bacteria! Go to the websites and answer the following questions on
a separate sheet of paper..
Please visit the following website(s):
http://www.microbeworld.org/
http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookmito.html#Prokaryotic%20Cell%20Division
http://www.britannica.com/EBchecked/topic/65525/binary-fission (watch the animation - you’ll need sound!)
1.
What is a bacteria?
2.
What is a prokaryote?
3.
How are bacteria classified?
4.
What are the three main shapes of bacterial cells?
5.
How small are bacteria?
6.
How do bacteria reproduce, describe the process.
7.
How can one slow the reproductive process of bacteria?
8.
Why are bacteria considered ubiquitous? (you might have to look up what ubiquitous means!)
Please visit the following website: http://www.microbeworld.org/
9.
How does each of the following make their energy (what type of feeder are they)?
A) Methanogens –
B) Halophiles –
C) Thermophiles –
D) Psychrophiles –
10. How are Archae bacteria different than Eubacteria?
11. How long ago did Bacteria and Archaebacteria diverge from a common ancestor?
Please visit the following website: http://www.cellsalive.com/cells/bactcell.htm
Label the parts of the bacterium: flagella, pilli, nucleoid(DNA), ribosomes, cell membrane, cell wall, capsule
Please visit the following website: http://www.csun.edu/~csunmore/Prokaryotes.html
Using the Venn Diagram below, list at least 2 features unique to Prokaryotes, 2 features unique to Eukaryotes and 2
features that they both share.
Please visit the following website: http://www.ucmp.berkeley.edu/bacteria/bacterialh.html
12. What are pathogenic bacteria?
13. What do aerobic bacteria require?
14. Where do anaerobic bacteria live and what can they cause?
15. How do facultative anaerobic bacteria differ from the other two?
16. What is decomposition and how do bacteria play a role in the environment?
17. What is nitrogen fixation and why are bacteria crucial to this cycle of life?
18. What is denitrifying bacteria and why are they harmful to crops?
Please visit the following websites:
http://www.cellsalive.com/pen.htm
http://whyfiles.org/038badbugs/mechanism.html
http://www.microbiologybytes.com/video/endospores.html
19. What is penicillin? How does it work?
20. What is a plasmid? How does this allow for antibiotic resistance?
21. How can some strains of bacteria, like anthrax, survive harsh, unfavorable conditions?
Please visit the following website: http://www.uphs.upenn.edu/bugdrug/antibiotic_manual/Gram1.htm
22. What is a gram stain?
23. What’s the difference between a gram positive and a gram negative bacterial cell?