Activities Quiz
1.

The DNA-containing region of this bacterial cell is indicated by the letter _____. (Activity 27A)

question #1

A
B
C
D
E


2.

_____ are surface appendages that allow a bacterium to stick to a surface. (Activity 27A)

Cell walls
Flagella
Ribosomes
Mitochondria
Pili


3.

What is the function of a bacterium's capsule? (Activity 27A)

protection
adhesion
protein synthesis
DNA containment
propulsion


4.

Where is a bacterial cell's DNA found? (Activity 27A)

ribosomes
nucleus
peroxisome
nucleoid region
capsule


5.

In a bacterium, where are proteins synthesized? (Activity 27A)

ribosomes
nucleus
peroxisome
nucleoid region
capsule


6.

What name is given to the rigid structure, found outside the plasma membrane, that surrounds and supports the bacterial cell? (Activity 27B)

capsule
pili
cell wall
flagella
nucleoid region


7.

The _____ is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell. (Activity 27A)

plasma membrane
nucleoid region
ribosome
pili
cell wall


8.

The structure that regulates the passage of material into and out of this bacterial cell is indicated by the letter _____. (Activity 27A)

question #8

A
B
C
D
E


9.

The prokaryotic cells that built stromatolites are classified as _____. (Activity 27B)

proteobacteria
chlamydias
spirochetes
gram-positive bacteria
cyanobacteria


10.

The prokaryotic cells that were the first to add significant quantities of oxygen to Earth's atmosphere are classified as _____. (Activity 27B)

proteobacteria
chlamydias
spirochetes
gram-positive bacteria
cyanobacteria


11.

Streptococcus aureus is classified with _____. (Activity 27B)

proteobacteria
chlamydias
spirochetes
gram-positive bacteria
cyanobacteria


12.

Organisms that can cause nongonococcal urethritis are classified with _____. (Activity 27B)

proteobacteria
chlamydias
spirochetes
gram-positive bacteria
cyanobacteria


13.

The chemoheterotroph Proteus vulgaris is a rod-shaped bacterium classified with _____. (Activity 27B)

proteobacteria
chlamydias
spirochetes
gram-positive bacteria
cyanobacteria


14.

Spiral-shaped bacteria are likely to be placed with _____. (Activity 27B)

proteobacteria
chlamydias
spirochetes
gram-positive bacteria
cyanobacteria


15.

Which of these pairs of prokaryotic subgroups share the most recent common ancestor? (Activity 27B)

question #15

Euryarchaeota ... Cyanobacteria
Proteobacteria ... Crenarchaeota
Proteobacteria ... Cyanobacteria
Euryarchaeota ... Crenarchaeota
Crenarchaeota ... Cyanobacteria



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