The Microbe World

What are Microbes?             |              Where Do They Live?

Microbes are everywhere - a largely unseen world of living things that support life processes. "The Microbe World" provides a comprehensive directory of micro-organisms and their activities.
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Microbe Quiz

This is our “Super Challenge Quiz”! To do well in this quiz, you have to have a good knowledge of basic microbiology, or have read the content on this site. If you want to see how good you really are, then go for it! It tests your knowledge on every section on this site. If you want to learn in the 'easy style of learning', then take the quiz first, read the content, and then take the quiz again. Good luck!

1. Name the period of rapid growth in a bacterial culture when the cells divide every few minutes.

mitosis
replication
log phasea
poptosis

2. Which of these must infect a living host to reproduce?

bacteria
viruses

3. When provided the proper nutrients, which of these can grow and reproduce on their own without a living host?

bacteria
viruses

4. What bacterial structure does penicillin weaken?

nucleosome
ribosome
endospore
cell wall

5. When bacteria are first cultured, growth is slow while the organisms acclimate to the conditions. This period is called.

stationary phase
death phase
lag phase
log phase

6. Given good growing conditions, bacteria in log phase may double as often as every...

24 hours
6 hours
2.5 hours
20 minutes

7. After passing through the digestive system, a cyst of the parasite Cryptosporidium will release how many infective sporozoite(s)?

one
four
twelve
over 100

8. What appear to be "eyes" in the parasite Giardia are actually a pair of...

lysosomes
symbiotic yeast
nuclei
vacuoles

9. What does the parasite Giardia use to attach to the intestinal wall of its host?

super glue
capsule
flagella
suction cup

10. The T4 bacteriophage, a virus that attacks E. coli bacteria, looks like...

an alien landing pod
my little sister
a coiled rope
a rhinovirus


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