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Prokaryotes: Prokaryotic Family Tree Quiz

Think you’ve got your head wrapped around Prokaryotes? Put your knowledge to the test. Good luck — the Stickman is counting on you!
Q. Archaea

Are all coccus shaped
Make spores to protect themselves from harsh environments
Can be opportunistic pathogens
Share more ribosomal homology with eukaryotes than with bacteria
None of the above
Q. Peptidoglycan is made of

Amino acids and lipids
Amino acids and sugars
Sugars and lipids
Amino acids, sugars, and lipids
None of the above

Q. Serotyping

Can recognize components of the inner membrane
Can recognize components of the outer membrane
Can recognize endotoxins but not exotoxins
Was developed by Koch
All of the above

You are Gram-staining a mix of Gram positive and Gram negative bacteria. In the graph above, the Gram-stain is blue and the counter stain is pink. Place the panels in the order they would appear in a typical Gram-staining preparation.

E, B, A
D, E, A
C, D, A
B, E, C
one of the above
Q. Which of the following is true of panel A (in the graph above):

Bacilli don’t appear because they are Gram-negative
The curved rods (vibrio) and spirilla are gram-negative
The spirilla and cocci are gram-negative
A and B
B and C
Q. Pili

Are also known as fimbria
Can help organisms sticking to rocks
Can be important virulence determinants
Are found in both archaea and bacteria
All of the above

Q. Syphilis transmission can be prevented by ____.

Reducing exposure to deer because it is transmitted by ticks.
Ensuring consumption of clean food and water.
Avoiding getting coughed on by people with it.
Avoiding direct skin contact with infected individuals.
None of the above.

Q. Antibiotics can operate by

Interfering with cell-wall synthesis
Blocking exotoxin formation
Interfering with mitochondria
Inhibiting pilus attachment
A, B, and D

Q. Which of the following statement about restriction enzymes is FALSE:

They come from bacteria
They are used for PCR
They work on viral DNA
They can be blocked by methylation
C and D

Q. The ____ is a good organism for studying symbiotic human microflora, as its digestive microflora are concentrated in the ____, as they are in humans.

Mouse, large intestines
Cow, intestines
Monkey, stomach
Goat, small intestines
All of the above