In a bacterial culture on an agar plate, what is a zone of inhibition? An area where the growth of bacteria is increased compared to the rest of the agar plate An area where the growth of bacteria is prevented or reduced compared to the rest of the agar plate An area where the growth of bacteria is not affected compared to the rest of the agar plate An area where the the agar becomes contaminated with mold

In a bacterial culture on an agar plate, what is a zone of inhibition? An area where the growth of bacteria is increased compared to the rest of the agar plate An area where the growth of bacteria is prevented or reduced compared to the rest of the agar plate An area where the growth of bacteria is not affected compared to the rest of the agar plate An area where the the agar becomes contaminated with mold

Basic Clinical Laboratory Techniques 6E

6th Edition

ISBN:9781133893943

Author:ESTRIDGE

Publisher:ESTRIDGE

Chapter7: Basic Clinical Microbiology

Section7.3: Culture Techniques For Bacteriology

Problem 14RQ

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What is the major difference between an enrichment culture and a selective culture? Why are microbial doubling times in nature typically longer than those obtained in the lab? Briefly describe the following mechanisms of measuring bacterial growth: Direct microscopic cell count Plate count Most probable number
A student needed to transfer bacteria from a broth culture to an agar plate. Below is the step-by-step what was done to accomplish this. The transfer of bacteria was not successful because of which step? 1. Cap of the broth culture is removed 2. The mouth of the bottle is flamed 3. The loop was flamed 4. The loop was inserted into the culture to pick up the bacteria 5. The loop was flamed 6. The loop containing the bacteria was used to introduced to spread the agar plate 7. The plate was placed in an incubator at 30 Celcius
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why is it important that a small amount of inoculum be used in preparation of an agar slant?
MSA (Mannitol Salt Agar) Match the description to the correct Bacterium A= growth, agar is yellow B= Growth, agar is not yellow C= no growth
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Below is an image of 3 different bacteria, letter labeld, growing on MacConkey Agar. Note that bacteria such as E. coli use mixed acid fermentation, with very high acid production which will cause a colored precipitation around colonies on MacConkey agar. MacConkey Agar C
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A class of 15 students (8 males and 7 females) will need to culture an unknown bacteria for a specific activity where 5 nutrient agar pates per female student and 3 agar slants per males student are needed to prepare. agarplate: 25mL Agar slant: 10mL Broth tube: 8mL Nutrient Agar: Yeast extract: 2g/L peptone: 5g/L Sodium chloride: 5g/L Agar powder: 15g/L

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		An area where the growth of bacteria is increased compared to the rest of the agar plate
		An area where the growth of bacteria is prevented or reduced compared to the rest of the agar plate
		An area where the growth of bacteria is not affected compared to the rest of the agar plate
		An area where the the agar becomes contaminated with mold