Q. Peptone water and nutrient broth are selective mediaenriched mediabasal medianone of these Answer: basal media
READ MORE +Q. Peptone water and nutrient broth are selective mediaenriched mediabasal medianone of these Answer: basal media
READ MORE +Q. When a substance is added to a solid medium which inhibits the growth of unwanted bacteria but permits the growth of wanted bacteria, it is known as differential mediumenriched mediumenrichment mediumselective medium Answer: selective medium
READ MORE +Q. Treponema species from human oral cavity can be selected by using pH of the mediumincubation temperaturecell size and motilityall of these Answer: cell size and motility
READ MORE +Q. In the pour plate method, the mixed culture is diluted directly in tubes of liquid agar mediumsterile liquid usually waterboth (a) and (b)none of these Answer: liquid agar medium
READ MORE +Q. Viable plate count can be obtained using Spread plate methodPour plate methodboth (1) and (2)Hemocytometer Answer: both (1) and (2)
READ MORE +Q. Which of the following hint(s) suggest/s that a given specimen is likely to contain anaerobic bacteria? Gas in specimenFoul odourPresence of sulphur granulesAll of these Answer: All of these
READ MORE +Q. Which of the following methods is most likely to be quantitative? Dilution and platingGram stainingWet mountNone of these Answer: Dilution and plating
READ MORE +Q. When a substance is added to a liquid medium which inhibits the growth of unwanted bacteria and favors the growth of wanted bacteria, it is known as differential mediumenriched mediumenrichment mediumselective medium Answer: enrichment medium
READ MORE +Q. All bacteria that inhabit the human body are heterotrophschemolithotrophsautotrophsphototroph Answer: heterotrophs
READ MORE +Q. Which of the following bacteria can grow in alkaline pH? ShigellaLactobacilliSalmonellaVibrio cholerae Answer: Vibrio cholerae
READ MORE +Q. A medium containing crystal violet dye plus sodium deoxycholate will allow gram (-)ve intestinal bacteria to growgram (+)ve intestinal bacteria to growaquatic bacteria to grownone of these Answer: gram (-)ve intestinal bacteria to grow
READ MORE +Q. Which of the following problem makes it impossible to satisfy all of Koch’s postulates? Microorganism causes serious symptoms in humansMicroorganism cannot be isolated in pure cultureSpecies of microorganism is in questionGenes from the microorganism cannot be amplified by PCR Answer: ...
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