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- 40. Which of the following is not bacteriocidal? a. rifampin b. tetracycline c. lytic bacteriophages d. sulfa drugs combined with Trimethroprim e. b & d 41. All the following can help protect the host from bacterial infections EXCEPT a. the binding of iron b. increase in body temperature but not fever c. overall restriction of blood flow d. bathing e. eyelashes 42. Lysozyme is not found in a. tears b. saliva c. Sweat d. bacteriophages e. all the above contain lysozymeIt is bactericidal by inhibiting protein synthesis, it does not used systemically because of high toxicity O a. Bacitracin O b. Minocycline O c. Polymyxin O d. Kanamycin33. A strain of Salmonella that is defective in SPI-2/T3S genes will fail to A. be taken up by the host cell B. survive in the blood stream C. produce toxins D. survive inside the host cell E. secrete flagella proteins 34. Which of the following cells (below) is known to produce antiphagocytic M protein? A. B. C. D. ●●●● E.
- Virulence factors includea. toxins b. exoenzymes c. capsules d. all of these6. A bacterial toxin was found to cause septic shock, and upon structural elucidation was found to be a lipid-sugar molecule. a. Septic shock is a i. Sign ii. Symptom iii. Neither b. This toxin is an: C. d. e. i. Exotoxin ii. Endotoxin This toxin is an i. AB Toxin ii. Membrane-damaging toxin iii. Superantigen iv. None True or False: A toxoid vaccine cannot be produce for this toxin This toxin is an i. Neurotoxin ii. Enterotoxin iii. Cytotoxin f. This toxin is an i. Heat-labile ii. Heat-stable iii. Neither g. This toxin is produced in i. Gram-negative only ii. Gram-positive only 111. Either Gram-positive or gram-negative 7. Superantigens (circle one) A. Are exceptionally large antigen molecules B. Cause a very large antibody response C. Elicit a response from a large number of T cells D. Attach non-specifically to B cell receptors E. Assist in a protective immune responseEscherichia coli displays which antigens? a. capsular c. fl agellar b. somatic d. all of these
- C. Teplone and phenol red d. Lactic acid and methyl red pogin 22. The urease test is used to help identify members of of its ability to catalyze urea breakdown faster than any other species a. Enterococci b. Proteus c. Staphylococcus d. Pseudomonas asiboga a. Carboxylic acid; CO2 b. Coagulate; coagulin e. Fibrinogin; fibrin d. Protein; amino acids ocoolqe:12 23. The coagulase test is used to identify microorganisms which can convert to 4. The TSI test tests all of the following EXCEPT a. Gas production b. Carbohydrate fermentation c. H₂S production d. Tryptophan hydrolysis Sagt DikiVI ns ТОЙ ai fot slobri ent.at species because lopoodiqg lliw noltouborg 8SH 10t lizoq bet Bibe SV OY 81 TWIN Jarl amanegro preds atsligioeng shell wolley sibem srif ogniert? er viupil b59. Which of the following are exposures associated with a disease and certain health outcomes such asmorbidity, mortality and disabilities?A. Host factors B. Mode oftransmission C. ReservoirD. Risk factors 60. Which of the following refers to the period or time that passes between being exposed and manifesting thedisease via signs and symptoms?A. Communicability periodB. Latency period C. Promotion periodD. Resting periodWhich of the following is antiviral drug? O a. Penicillin O b. Streptomycin O c. Acyclovir O d. All
- Match the pathogen to the correct virulence factor Varicella-zoster virus Staphylococcus aureus Streptococcus pyogenes Pseudomonas aeroginosa Clostridium tetani A. latent infection B. clumping factor C. Exotoxin B and F protein D. Exoenzyme S E. neurotoxin1.) Which of the following are criteria for antibiotics? ( Select all that apple) A. Kill viruses B. Chemical substances produced by a microscope C. Effective in small doses D. Stops the growth or kills other microorganisms. 2) which antibiotic inhibits protein synthesis? ( select all that apply) A. Gentamicin B. Amoxicillin C. Erythromycin D. Tetracycline1. Identify below the bacteria's shape and its gram reaction A. Staphylococcus aureus B. Escherichia coli C. Klebsiella pneumoniae D. Vibrio cholerae E. Streptococcus sp F. Spirillum sp G. Bacillus subtilis H. Neiserria gonorrhea I. Clostridium botulinum J. Pseudomonas aeruginosa K. Salmonella typhosa
