CELL CULTURES AND CHARACTERISTICS QUIZ

Which of the following is used for the proper maintenance and preservation of pure cultures?

Periodic transfer to fresh media

Preservation by lyophilization

Preservation by overlaying cultures with mineral oil

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following hint(s) suggest/s that a given specimen is likely to contain anaerobic bacteria?

Gas in specimen

Presence of sulphur granules

Foul odour

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following chemotherapeutic agents may affect the growth of Campylobacter jejuni?

None of these

Vacomycin

Polymyxin

Trimethoprim

TRUE ANSWER : ?
YOUR ANSWER : ?

Important example(s) of enriched medium/media is/ are

Loeffler's serum slope

All of these

Blood agar

Bordet-gengou medium

TRUE ANSWER : ?
YOUR ANSWER : ?

Stuart's transport medium is used for transport of specimen containing

Neisseria gonorrhoeae

Vibrio cholerae

Salmonella

Shigella

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following techniques may be performed quantitatively to determine the number of bacteria of a particular type?

Streak plate technique

Spread plate

Both (a) and (b)

Pour plate

TRUE ANSWER : ?
YOUR ANSWER : ?

Peptone water and nutrient broth are

enriched media

selective media

none of these

basal media

TRUE ANSWER : ?
YOUR ANSWER : ?

A medium containing crystal violet dye plus sodium deoxycholate will allow

gram (+)ve intestinal bacteria to grow

aquatic bacteria to grow

gram (-)ve intestinal bacteria to grow

none of these

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YOUR ANSWER : ?

Viable plate count can be obtained using

Spread plate method

both (a) and (b)

Pour plate method

Hemocytometer

TRUE ANSWER : ?
YOUR ANSWER : ?

A disease producing species occurring in a mixed culture can often be selected on the basis of its

pathogenic properties

none of these

special nitrogen source

special carbon source

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YOUR ANSWER : ?

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