2019 Exam 1

a method used to identify organisms by mass spectroscopy of their small (ribosomal) protein profiles. What does MALDI-TOF-MS stand for?

• Mass Analysis of Large DNA Intact-Tandem Organic Fragments-Mass Spectrometry

• Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry

• Microbial Analysis of Low Density Intact-Tandem Organic Fragments-Mass Spectrometry

• Molecular Analysis of Large DNA Intact-Tandem Organic Fragments-Mass Spectrometry

is the plasmid-encoded virulence factor missing from the veterinary-labeled anthrax spore vaccine (Sterne strain). What is the name of this plasmid-encoded virulence factor?

• pXO1

• capsule

• pXO3

• pXO2

is the plasmid that must be expressed in the anthrax vaccine to give a protective immune response. What is the name of the plasmid-encoded virulence factor missing from the veterinary-labeled anthrax spore vaccine?

• Capsule

• pXO1

• pXO2

• pXO3

is the class of antibody that generally stays within the intravascular space. Which class of antibody is primarily involved in the primary immune response?

• IgA

• IgG

• IgE

• IgM

are important outer surface antigens of some gram positive bacteria. What do teichoic acids attach to in the cell wall?

• Lipopolysaccharide (LPS)

• Peptidoglycan

• Capsule

• Teichoic acids

is produced by some bacteria to detoxify hydrogen peroxide produced during metabolism. Which enzyme is responsible for detoxifying hydrogen peroxide? (2)

• peroxidase

• Amylase

• Catalase

• Protease

is the type of T-cell response that blocks a TH1 response. Which type of T-cell response is responsible for activating B-cells and promoting antibody production?

• TH1

• TH2

• TH17

• Treg

ring structure common to all penicillins and cephalosporins

• protein A

• capsule

• beta lactam

• M-protein

is the test used to identify the group specific carbohydrates of streptococci

• CAMP

• superantigens

• beta lactams

• Lancefield

Major virulence determinant on the outer surface of group A and C streptococci

• M-protein

• lethal factor

• superantigens

• protein A