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Worksheets210 Bacterial Cell Fall 2021
Total questions: 37
Worksheet time: 37mins
Name
Class
Date
1.
Letter A is pointing to the:
a)
Pili
b)
Flagellum
c)
Cell Wall
d)
Plasmid
2.
Letter G is pointing to the:
a)
Glycocalyx
b)
Cell Wall
c)
Cell Membrane
d)
Cytoplasm
3.
Letter H is pointing to the:
a)
Glycocalyx
b)
Cell Wall
c)
Cell Membrane
d)
Cytoplasm
4.
Letter J is pointing to the:
a)
Plasmid
b)
Ribosome
c)
Chromosome
d)
Cytoplasm
5.
What important role do bacteria play in biofilms?
a)
They recycle carbon building blocks (monomers) and prevent them being lost to the environment.
b)
They produce vitamins.
c)
They slow down food spoilage.
d)
They have no particular significance.
6.
Would you find bacteria with MANY Fimbriae (yellow structure) more likely in bacteria with slime layers or with capsules? Why?
a)
Slime Layers - it helps the bacteria to establish a biofilm
b)
Capsules - it helps bacteria to establish quorum sensing
7.
What is the yellow structure?
a)
Pili
b)
Glycocalyx
c)
Flagella
d)
Fimbriae
8.
Which of these two types of glycocalyx is MORE LIKELY to cause problems in a weepy, wet wound? Why?
a)
Slime Layer
b)
Capsule
9.
Which type of glycocalyx might be more likely be found on bacterial cells that live in an extremely dry desert? Why?
a)
Slime Layer- biofilms help to protect from drying out
b)
Capsule - capsules help to keep water from leaving the cell in dry environments
10.
What is the function of the yellow structure?
a)
The yellow structures help the bacteria sense their environment and each other.
b)
They yellow structures are a type of bacterial velcro that helps the cells stick to each other and surfaces.
c)
The yellow structures beat together to move the bacterial cell.
d)
The yellow structures are for exchanging genetic information.
11.
Number 6 is the glycocalyx. Would this bacterial cell be more or less pathogenic if it infected an animal? Why?
a)
More pathogenic
b)
Less pathogenic
12.
Does a bacterium always have flagella?
a)
No, it never does.
b)
Yes, always.
c)
No. Some species do, some species do not have flagella.
d)
Bacterial cells usually have two flagella.
13.
Letter D is pointing to the (small projection):
a)
Cilia
b)
Ribosome
c)
Cytoplasm
d)
Fimbriae
14.
Letter F is pointing to the:
a)
Glycocalyx
b)
Cell Wall
c)
Cell Membrane
d)
Cytoplasm
15.
Is this gram positive or negative? Bacilli or Cocci?
a)
Gram Positive Bacillus
b)
Gram Negative Bacillus
c)
Gram Positive Coccus
d)
Gram Negative Coccus
16.
What is the name of the bacterial movement.
a)
Zig Zag
b)
Run and Tumble
c)
Random Walk
d)
Relax and Forward
17.
What is the name of the structure connecting the two bacilli?
a)
Flagellum
b)
Pilus
c)
Fimbria
d)
Glycocalyx
18.
What is the function of the structure that looks like it is connecting the two bacilli.
a)
Exchange of genetic material - also called horizontal gene transfer.
b)
One of the bacilli is trying to kill the other bacillus.
c)
The two bacilli are trying to attach to each other like velcro.
d)
The structure is used for swimming in a liquid or semi-liquid medium.
19.
Is this bacterial cell gram positive or gram negative? Why?
a)
Gram positive because there is no outer membrane and the cell wall looks thick.
b)
Gram negative because there is an outer membrane and the cell wall looks thin.
c)
Gram positive because there is an outer membrane and the cell wall looks thin.
d)
Gram negative because there is no outer cell membrane and the cell wall looks thick.
20.
A particular bacteria cell has a slime layer, an outer membrane, a thin cell wall and an inner membrane. Is this cell gram positive or gram negative?
a)
Gram positive.
b)
Gram negative
21.
Which is correct for these bacterial cells?
a)
Gram positive staphylobaccillus
b)
Gram negative staphylobacillus
c)
Gram negative streptobacillus
d)
Gram positive streptobacillus
22.
What type of bacteria are on this image?
a)
Gram positive staphylococcus
b)
Gram negative staphylococcus
c)
Gram positive streptococcus
d)
Gram negative streptococcus
23.
What concept is diagrammed here?
a)
Left initializing bacteria, right side biofilm.
b)
Left side bacteria releasing quorum sensing molecule (blue dot); left side initiating community behavior as the bacterial number is high enough to initiate a behavior such as virulence (red dots).
c)
Left side big bacilli and tiny cocci; right side big bacilli and two species of tiny cocci.
24.
Do bacteria always have just one flagellum?
a)
No. Some can have more than one flagellum.
b)
Yes. There is always only one flagellum.
25.
Bacteria have two types of DNA. The first type has all the essential information for the cell to make a living; the second type has useful but not essential information. Which are the two types?
a)
Plasmid, Bacterial Chromosome
b)
Plasmid, Nucleus
c)
Bacterial Chromosome; Plasmid
d)
Nucleus; Bacterial Chromosome
26.
Which structure plays a key role in transferring bacterial DNA from one bacterium to another?
a)
Chromosome
b)
Nucleus
c)
Pilus
d)
Cell Wall
27.
What is one structure found in the cytoplasm of bacteria cells?
a)
The Bacterial Chromosome
b)
The Nucleus
c)
the protein coat
d)
the flagellum
28.
The name streptococcus tells you the bacteria are arranged as ___.
a)
pairs of round cells
b)
long chains of round cells
c)
groups of spirals
d)
chains of rods
29.
Which of the following may be found in a bacterial cell?
a)
nucleus
b)
ribosomes
c)
mitochondria
d)
golgi bodies
30.
Which of these would you not expect to find in a bacterial cell?
a)
cell wall
b)
cell membrane
c)
nucleus
d)
cytoplasm
31.
What is the function of the ribosomes?
a)
respiration
b)
protein synthesis
c)
cell replication
d)
DNA replication
32.
Area of the cytoplasm that contains the essential DNA of the bacterial cell.
a)
Chromosome
b)
Capsule
c)
Pili
d)
Plasma Membrane
33.
Which structure do bacteria use to exchange plasmids?
a)
Flagellum
b)
Fimbriae
c)
Glycocalyx
d)
Pili
34.
Which of the following may be or contain extra DNA?
a)
ribosomes
b)
plasmids
c)
nucleoid
d)
nucleoli
35.
Letter E is pointing to the:
a)
Plasmid
b)
Ribosome
c)
Chromosome
d)
Cytoplasm
36.
When times are good bacteria store extra nutrients for lean times. What are these storage structures called?
a)
inclusions or granules
b)
ribosomes or cytosol
c)
cytoplasm or pilus
d)
glycocalyx or gram negative
37.
Bacteria store nutrients when times are good so they have food when times are lean. What are these structures called?
a)
Inclusions or granules
b)
Fimbriae or flagella
c)
Pili or Fimbriae
d)
Slime layer or capsule
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