course materials

1. ATA Career Education Cellular Motility Questions
Question Description1.Saliva is an acceptable specimen to analyze in place of sputum to
properly diagnose a patient’s lower respiratory infection.2. A negative result for a rapid
immunodiagnostic test to detect strep throat in a child should be submitted for culture
before ruling out an infection.3. The three parts of a urine culture are to perform a colony
count, isolate and identify the pathogen and determine the isolate’s antimicrobial
sensitivity.4. Refrigeration of fecal specimens may enhance the recovery of Salmonella
species from the sample.5. Miniaturized biochemical test systems are only available for the
identification of yeasts.6. MALDI-TOF can quickly identify a microorganism by measuring
the mass-to-charge ratio of ionized particles and producing a proteomic fingerprint that is
compared to known reference strains.7. Attachment of the pathogen to host tissues is an
essential step for all infectious diseases.8. The earliest symptoms of a disease appear during
the incubation period.9. As bacterial flagella facilitate cellular motility, they cannot be
considered virulence factors.10. The M-protein of S. pyogenes contributes to pathogenicity
by promoting attachment to host cells and evading phagocytosis by leukocytes.11. An
important identifying feature of Staphylococcus epidermidis in the lab is its ability to
produce coagulase.12. Exotoxins are lipid-based molecules that include neurotoxins and
enterotoxins.13. Only C. diphtheriae infected with a particular phage can produce
diphtheria toxin.