STRAIGHTERLINE MICROBIOLOGY QUESTIONS
WITH COMPLETE SOLUTIONS
A bacterium is inoculated into a tube of thioglycollate and
incubated. After incubation, turbidity appears throughout, top to
bottom, with the greatest turbidty at the very top. This bacterium
would be called a(n) ______. Correct Answer facultative
anaerobe
A bacterium that you isolated from pond water appears to use
light for energy. Based upon this information, you inoculate the
organism into fresh media, infused with lots of carbon dioxide.
Even after incubation at the correct temperature (of pond water),
the organism is not growing. Your best explanation of what
might have happened is Correct Answer there was no sulfur
compound added to the medium, that could be used as an
electron donor.
A common method for cultivating viruses in the lab is to use in
vitro systems called _____ cultures. Correct Answer cell
A diagram of the three domains (Bacteria, Archaea, Eukarya)
proceeding from the Last Universal Common Ancestor would
show Archaea Correct Answer branching off the Domain
Eukarya.
A fat is called _____ if all carbons of the fatty acid chain are
single-bonded to 2 other carbons and 2 hydrogens. Correct
Answer saturated
, A halophile would grow best in ______. Correct Answer salt
lakes
A microbiologist must culture a patient's feces for intestinal
pathogens. Which of the following components would likely be
present in a selective medium for this purpose? Correct Answer
Bile salts
A nutrient medium that has all of its chemical components
identified and their precise concentrations known and
reproducible is termed ______. Correct Answer defined
A protozoan cyst differs from a helminth egg in that Correct
Answer the cyst can germinate to form the organism but the egg
must be fertilized.
A pure culture contains Correct Answer only one identified
species of microorganism.
A reducing medium contains Correct Answer substances that
remove oxygen.
A saprobe differs from a parasite in that Correct Answer a
saprobe derives nutrients from dead plants and animals, but a
parasite derives nutrients from living plants and animals.
A scientist who studies the influence of microbes in the
formation of caves is called a(n) ______. Correct Answer
geomicrobiologist
WITH COMPLETE SOLUTIONS
A bacterium is inoculated into a tube of thioglycollate and
incubated. After incubation, turbidity appears throughout, top to
bottom, with the greatest turbidty at the very top. This bacterium
would be called a(n) ______. Correct Answer facultative
anaerobe
A bacterium that you isolated from pond water appears to use
light for energy. Based upon this information, you inoculate the
organism into fresh media, infused with lots of carbon dioxide.
Even after incubation at the correct temperature (of pond water),
the organism is not growing. Your best explanation of what
might have happened is Correct Answer there was no sulfur
compound added to the medium, that could be used as an
electron donor.
A common method for cultivating viruses in the lab is to use in
vitro systems called _____ cultures. Correct Answer cell
A diagram of the three domains (Bacteria, Archaea, Eukarya)
proceeding from the Last Universal Common Ancestor would
show Archaea Correct Answer branching off the Domain
Eukarya.
A fat is called _____ if all carbons of the fatty acid chain are
single-bonded to 2 other carbons and 2 hydrogens. Correct
Answer saturated
, A halophile would grow best in ______. Correct Answer salt
lakes
A microbiologist must culture a patient's feces for intestinal
pathogens. Which of the following components would likely be
present in a selective medium for this purpose? Correct Answer
Bile salts
A nutrient medium that has all of its chemical components
identified and their precise concentrations known and
reproducible is termed ______. Correct Answer defined
A protozoan cyst differs from a helminth egg in that Correct
Answer the cyst can germinate to form the organism but the egg
must be fertilized.
A pure culture contains Correct Answer only one identified
species of microorganism.
A reducing medium contains Correct Answer substances that
remove oxygen.
A saprobe differs from a parasite in that Correct Answer a
saprobe derives nutrients from dead plants and animals, but a
parasite derives nutrients from living plants and animals.
A scientist who studies the influence of microbes in the
formation of caves is called a(n) ______. Correct Answer
geomicrobiologist
