Agar is a complex polysaccharide that comes from a/an ___________.
a. green plant
b. fungus
c. bacterium
d. algae
e. marine invertebrate - ANSWER d. algae
Using microbes to detoxify a site contaminated with heavy metals is an example of
_________.
a. biotechnology
b. bioremediation
c. decomposition
d. immunology
e. epidemiology - ANSWER b. bioremediation
The three physical forms of laboratory media are _____________.
a. solid, liquid, and gas
b. solid, semisolid, and liquid
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,c. a streak plate, a pour plate, and a broth
d. reducing, transport, and enumeration - ANSWER b. solid, semisolid, and liquid
Which of the following is a traditional human use of microorganisms?
a. baking
b. treating water and sewage
c. mass-producing antibiotics
d. cleaning up oil spills - ANSWER a. baking bread
Which of the following represents a synthesis reaction?
a. AB --> A + B
b. A + B --> AB
c. AB + XY --> AY +XB
d. AB + XY <--> AY + XB - ANSWER b. A + B --> AB
Basic dyes are
a. attracted to the acidic surface of bacterial cells
b. anionic
c. used in negative staining
d. repelled by cells
e. dyes such as India ink and nigrosin - ANSWER a. attracted to the acidic surface of
bacterial cells
The type of microscopy in which you would observe brightly illuminated specimens against a
black background is __________
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, a. confocal
b. dark-field
c. phase-contrast
d. fluorescence
e. electron - ANSWER b. dark-field
A reducing medium is used to culture _________ organisms.
a. fastidious
b. aerobic
c. anaerobic
d. pathogenic - ANSWER c. anaerobic
In the cell cytoplasm, molecules of ATP are a ________
a. solute
b. solvent - ANSWER a. solute
A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the Last
Universal Common Ancestor would show Archaea
a. as the original cells from which the others derived
b. branching off the domain Eukarya
c. branching off of the domain Bacteria - ANSWER b. branching off the domain Eukarya
In the experiments constructed by Pasteur to disprove spontaneous generation, swan-
necked flasks were used. Why was this shape of flask used in this experiment.
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a. green plant
b. fungus
c. bacterium
d. algae
e. marine invertebrate - ANSWER d. algae
Using microbes to detoxify a site contaminated with heavy metals is an example of
_________.
a. biotechnology
b. bioremediation
c. decomposition
d. immunology
e. epidemiology - ANSWER b. bioremediation
The three physical forms of laboratory media are _____________.
a. solid, liquid, and gas
b. solid, semisolid, and liquid
1
,c. a streak plate, a pour plate, and a broth
d. reducing, transport, and enumeration - ANSWER b. solid, semisolid, and liquid
Which of the following is a traditional human use of microorganisms?
a. baking
b. treating water and sewage
c. mass-producing antibiotics
d. cleaning up oil spills - ANSWER a. baking bread
Which of the following represents a synthesis reaction?
a. AB --> A + B
b. A + B --> AB
c. AB + XY --> AY +XB
d. AB + XY <--> AY + XB - ANSWER b. A + B --> AB
Basic dyes are
a. attracted to the acidic surface of bacterial cells
b. anionic
c. used in negative staining
d. repelled by cells
e. dyes such as India ink and nigrosin - ANSWER a. attracted to the acidic surface of
bacterial cells
The type of microscopy in which you would observe brightly illuminated specimens against a
black background is __________
2
, a. confocal
b. dark-field
c. phase-contrast
d. fluorescence
e. electron - ANSWER b. dark-field
A reducing medium is used to culture _________ organisms.
a. fastidious
b. aerobic
c. anaerobic
d. pathogenic - ANSWER c. anaerobic
In the cell cytoplasm, molecules of ATP are a ________
a. solute
b. solvent - ANSWER a. solute
A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the Last
Universal Common Ancestor would show Archaea
a. as the original cells from which the others derived
b. branching off the domain Eukarya
c. branching off of the domain Bacteria - ANSWER b. branching off the domain Eukarya
In the experiments constructed by Pasteur to disprove spontaneous generation, swan-
necked flasks were used. Why was this shape of flask used in this experiment.
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