WorksheetsBacteriology
Total questions: 22
Worksheet time: 11mins
Bacterial cells are this type of cell that contain no nucleus...
prokaryotic
eukaryotic
Human body cells are examples of this type of cell that contains a nucleus...
prokaryotic
eukaryotic
What is a bacterial colony?
solidifying gel-like agent used for growth media
a technique used to thin out bacterial growth
a visible clump of bacterial growth on an agar plate separate from other areas of growth
a population of microorganisms grown under well-defined conditions
What is a bacterial culture?
solidifying gel-like agent used for growth media
a technique used to thin out bacterial growth into separate areas
a visible clump of bacterial growth on an agar plate separate from other areas of growth
a population of microorganisms grown under well-defined conditions
What is the purpose of the "zig-zag" method of streaking an agar plate?
To make sure bacterial growth occurs on a larger area of the agar plate
To thin out bacterial growth so as to create isolated colonies
To create a "thicker" area of bacterial growth
To make sure that only one type of bacteria grows on the agar plate
Cultural morphology refers to...
the physical shape and appearance of the bacterial growth on an agar plate
the presence of a bacterial colony
a pure culture that contains only one type of bacteria
a procedure performed under sterile conditions
Which cellular morphology appears as a small circle?
coccus
bacillus
spirillium
Which cellular morphology appears as elongated, oval, or "rod" shaped?
coccus
bacillus
spirillium
This type of bacteria forms long chains...
micrococcus
diplococcus
staphylococcus
streptococcus
This type of bacteria forms in large bunches like grapes...
micrococcus
diplococcus
staphylococcus
streptococcus
This type of staph infection can be difficult to treat due to being resistant to most commonly used antibiotics...
Streptococcus (strep throat)
Pneumonia
Bronchitis
MRSA
A procedure in which all cells are stained the same color...
simple stain
differential stain
primary stain
counterstain
A staining technique used to categorize cells based on how they react to dyes in certain stains.
simple stain
differential stain
primary stain
counterstain
Gram + bacteria will take the color of which stain?
simple stain
differential stain
primary stain
counterstain
Gram - bacteria will take the color of which stain?
simple stain
differential stain
primary stain
counterstain
What chemical is used as the primary stain in a Gram stain?
crystal violet
iodine
alcohol
safranin
What chemical is used as the counterstain during Gram staining?
crystal violet
iodine
alcohol
safranin
What is Gram's Iodine used for during Gram staining?
primary stain
counterstain
fixative / mordant
decolorizer
What is the purpose of the alcohol during Gram staining?
to use as the primary stain
to use as the counterstain
to remove the primary stain from Gram - bacteria
to remove the primary stain fro Gram + bacteria
What teichoic acid containing macromolecule in the cell wall does the primary stain bind to in Gram + bacteria?
sucrose
peptidoglycan
lipids
protein
Which best describes the bacteria shown in the picture?
Gram - streptococcus
Gram - bacillus
Gram + streptococcus
Gram + bacillus
The E. Coli bacteria pictured can be classified as...
Gram + bacillus
Gram - bacillus
Gram + streptococcus
Gram - staphylococcus
