MedMicroQuiz#20L BI 420 Medical Microbiology Name Take Home Quiz #2 Multiple Cho
ID: 148931 • Letter: M
Question
MedMicroQuiz#20L BI 420 Medical Microbiology Name Take Home Quiz #2 Multiple Choice (1 point each) . The complete killing or removal of all living organisms from a particular location is a. disinfection b. sterilization c. sanitization d. verification 2. Hospital-associated infections are a. neonatal b. neocomical c. nanonomial d. nosocomial 3. Something that inhibits the growth of bacteria but does not kill them is a. bacteriostatie b. bactericidal c. bacteriseptic d. none of the above 4. The degree or intensity of pathogenicity is a. infection b. virulence c. parasitism d. toxigenicity 5. Exotoxins a. b. c. d. are only toxic in high does are the lipopolysaccaride of cell walls stable to heat none of the aboveExplanation / Answer
Question1- Complete removal of all microorganism from a particular location is sterelization. So option b is correct.
Question 2- Nosocomial infection is acquired in a hospital or other health providing facility as nursing home, rehabilitaion facility. when person come in contracted with infection by his/her own skin is also nosocomial infection.This infection arises due to contaminated equipment, air droplets and bed line. in some cases patient own skin microbiota causes infections. So option d is correct.
Question 3- Bacteriostatic is a chemical agent that stop reproducing the bacteria while does not killing them for example ceftriaxome may act as bacteriocidal but also act as bacteriostatic. So bacteriostatic is correct option
Quetion 4- Virulance is interchangeably with pathogenicity and known as degree of pathogenic caused by the microorgnism. Pathogenicity is the ability of microorganism to harm the host. Virulance is commonly associated with ability of pathogen to reproduce within the host. So option b is correct. so option a is correct.
Question 5- Exotoxin are secreated by bacteria that is heat labile.protein enzymes and small amount is very harmful, soluble in body fluids. So option d is correct.
Question 6- Many antimicrobial agents interfere with 1-Cell wallsynthesis(cephalosporine) 2- Necleic acid (Quinolones) synthesis 3-Ribosomal function (Cholramphenicol) 4-Plasma membrane integrity (Polymixins) and 5- folate synthesis (Sulfonamides).