The microbes commonly known as ________ are single-celled eukaryotes that are generally motile.
A) archaea
B) bacteria
C) fungi
D) protozoa
E) viruses
Antoni van Leeuwenhoek was the first person in history to
A) use a magnifying glass.
B) develop a taxonomic system.
C) view microorganisms and record these observations.
D) disprove spontaneous generation.
E) use the germ theory of disease.
Fluids should be processed for direct microscopic examination. If one organism is observed per oil immersion field, then at least _____ organisms per milliliter of specimen are present.
a. 102
b. 103
c. 104
d. 105
The proper technique for processing clotted body fluids sent to the laboratory for fungal culture is:
a. grinding them in a mortar and pestle or glass tissue grinder.
b. placing small amounts of whole material from the clot directly onto media.
c. centrifugation with glass beads.
d. filtration under pressure.
Sheep blood agar serves which purpose when used in the bacterial fecal culture?
a. Evaluation of general flora and predomi-nant species
b. Selection of enteric pathogens such as Salmonella, Aeromonas, and others
c. Inhibition of normal flora and selection of enteric pathogens
d. Enrichment for enteric pathogens such as Salmonella and others
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