- Which of the following does not kill endospores?A) AutoclaveB) IncinerationC) Hot air sterilizationD) Pasteurization
- Which organism produces a toxin that causes scalded skin syndrome?A) StreptococcusB) Pseudomonas aeruginosaC) Staphylococcus aureusD) Mycobacterium ulcerans
- Which of the following lacks a cell wall?A) BorreliaB) MycoplasmaC) MycobacteriumD) ClostridiumE) Nocardia
- In Precipitation reaction the visible precipitate will appear under which of the following conditions?A) The ratio of antibodies to antigens is 2 to 1B) All antigens have become bound by antibodies.C) The ratio of antigens to antibodies is 2 to 1D) The antibody-antigen concentrations are in optimal proportions.
- Bacteriophage are readily counted by the process of:A) immunoassaysB) ELISAC) Plaque assaysD) tissue cell cultureE) Electron Microscopy
- What about trichomonas vaginalis is true?A) does not produce cystsB) In males causes urethritisC) In females causes vaginitis with a four-smelling dischargeD) has four flagella and undulating membraneE) All of the choices are correct
- Which of the following is not an DNA virus?A) HerpesvirusB) PoxvirusC) PapilomavirusD) AdenovirusE) Rubellavirus
- characteristic symptom of bubonic plague inA) small red spots on the skinB) rose-colored spotsC) recurrent feverD) swollen lymph nodes,E) nausea and vomiting
- More than half of the antibiotics used in the medical practice areA) produced by fungiB) produced by bacteriaC) synthesized in laboratories.D) produced by eukaryotic organisms
- The limit of useful magnification for a light microscope is:a) 10X.b) 2000X.c) 100X.d) 10,000X.
- The rise in herd immunity amongst a population can directly attributed toA) increased use of antibiotics MicrobiologyB) improved handwashing C) vaccinations D) antibiotic-resistant microorganis tions E) None of the answers is correct
- One of the microorganisms involved in the formation of dental caries is:a) s aureusb) S epidermidisc) s pyogenesD) S. mutans
- After using an inoculating loop or needle, how they have to be sterilizedA) Clean the inoculating loop or needle with soap and ethyl alcoholb) Wipe the inoculating loop or needle with a paper towelc) Heat the inoculating loop or needle with the alcohol burner flame until it becomes redd) Carefully place the inoculating loop or needle onto bench top
- The portion of hypha that is above the surface , is responsible for reproduction and produces asexual reproductive spores is:a) Septate hyphaeb) Coenocytic hyphaec) Aerial hyphaed) Vegetative hyphae
- Cystitis is inflammation ofa) the urethrab) the kidneysc) the bladderd) the glomeruli of the kidneys
- Which groups of protozoa are non-motile in their mature stagea) Sarcodinab) Mastigophora c) Sporozoad) Ciliophora
- The bacteria which is novobiocin resistant isA) S. aureusB) S.epidermidisC) S.saprophyticusD) Both (A) and( B)
- A prokaryotic species is defined as aA) population of cells with similar characteristicsB) population of cells with different characteristicsC) group of closely related organisms that can interbreedD) group of organisms that are not composed of cells
- Escherichia coli belongs to theA) gram-positive bacteriaB) Gamma proteobacteriaC) green sulfur bacteriaD) spirochetes hE) actinomycetes
- A urinary tract infection might involve the ?A) kidneyB) urethraC) bladderD) All of the