Download Virus and Bacteria Practice Test

Virus and Bacteria Practice Test
1. What are the two domains of bacteria?
Name: __________________________ Hour: _________
______eubacteria___________________ and ___________archaea____________
2. List 2 examples of how these bacteria are different.
• The cell walls of the eubacteria contain peptidoglycan, but archaebacteria do not.
• The two groups of organisms have different lipids in their membranes.
• Different ribosomal proteins and RNA
3. List the 3 shapes of bacteria:
a. _____cocci____________________
b. _____bacilli____________________
c. _____spirilli____________________
4. How do bacteria reproduce? (name one way—there are two)
________conjugation and binary fission_________________
5. Are viruses considered living? Explain.
No, they cannot live on their own, require a host. No organelles to take in nutrients, can’t make proteins, can’t
move.
6. What is a prion?
Mutated protein that can cause infection or disease.
7. What is the purpose of the cell wall?
Support and protection.
8. How do chemoautotrophs get food?
Break down and release inorganic compounds that contain nitrogen or sulfur
9. What are “normal flora”?
Most of the bacteria that live in or on you are harmless and are called normal flora.
10. What occurs during binary fission?
Asexual form of reproduction in which one cell becomes two identical cells.
11. Identify the shapes:
_____cocci________
_______spirilli_______
12. What type of bacteria exists in most normal environments?
a. eubacteria
c. halophiles
b. methanogens
d. thermoacidophiles
13. Which group of organisms includes thermoacidophiles, halophiles and methanogens?
a. adenobacteria
c. archaebacteria
b. bacteria
d. chemoautotrophs
14. What does peptidoglycan make up in eubacteria but not archaebacteria?
a. lipids
c. cell wall
b. cell membrane
d. RNA
15. What process of reproduction is shown here?
a. nuclear fusion
b. conjugation
c. binary fission
d. budding
16. Before prescribing an antibiotic, what does a physician need to know about the bacteria causing the infection?
a. the shape of the bacteria
c. the type of cell wall the bacteria have
b. the type of pili and
flagella the bacteria have
d. whether they are eubacteria or
archaebacteria
17. What survival characteristic of bacteria has required the development of new and harsher antibiotics for fighting
bacterial infections?
a. endospore formation
c. fast population growth
b. high mutation rate
d. rapid reproduction
18. Which disease is carried by mosquitoes and is known as “break-bone fever” due to the incredible amount of pain
its victims go through?
a. dengue
c. polio
b. hanta
d. mutant measles
19. Which disease is airborne, spread through the carcasses of deer mice?
a. dengue
c. Ebola
b. hanta
d. mutant measles
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20. _____ringworm______________ Mentioned in the bacterial section, this isn’t entirely caused by bacteria.
21. ________body odor___________ Caused when bacteria located on skin break down sweat into acids.
22. _____ringworm______________ This “bacterial” infection can affect nail beds as well as skin.
23. Name 1 benefits to probiotics.
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Many vital enzymes are produced by probiotics, which helps increase the availability of important vitamins,
nutrients, and minerals in the body.
Constipation can quickly be relieved by taking probiotics.
Probiotics help to slow down the spread of bacteria that cause diseases when they attach themselves to the lining
of the intestinal walls. This is due to the fact that they create a lot of acid, which inhibits the growth of these
unhealthy bacteria.
Probiotics kill infections and parasites.
Probiotics help to reduce cholesterol.
Fungal and yeast infections can be prevented as well as treated when using probiotics.
The cleansing of the colon is a common side effect of probiotics, which means that bad breath and body odor are
also reduced.