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What is the purpose of the spread plate method?

• To prepare pure cultures by streaking on an agar plate

• To count and isolate bacteria in a liquid sample

• To study and characterize an individual bacterial species

• To isolate microbial colonies by serial dilution

What is the principle of the streak plate method?

• To count the number of viable microorganisms in a diluted sample

• To spread a loopful of culture on an agar plate to get individual cells far apart

• To transfer a small volume of dilute bacterial mixture to the center of an agar plate

• To isolate microbial colonies by mixing with liquid tryptic soy agar

What is the purpose of the pour plate method?

• To prepare pure cultures by streaking on an agar plate

• To count and isolate bacteria in a liquid sample

• To isolate microbial colonies by serial dilution

• To study and characterize an individual bacterial species

How are individual colonies formed in the spread plate method?

• By mixing the sample with liquid tryptic soy agar

• By evenly spreading the bacterial mixture over the surface with a glass rod

• By spreading diluted samples on sterile Petri plates

• By transferring the bacterial mixture to the edge of an agar plate

What is the purpose of establishing a dilution gradient in the streak plate method?

• To count the number of viable microorganisms in a diluted sample

• To prepare pure cultures by streaking on an agar plate

• To isolate microbial colonies by serial dilution

• To spread a loopful of culture on an agar plate to get individual cells far apart

How are colonies fixed in place in the pour plate method?

• By spreading the bacterial mixture over the surface with a glass rod

• By transferring the bacterial mixture to the edge of an agar plate

• By mixing the sample with liquid tryptic soy agar

• By spreading diluted samples on sterile Petri plates

What is the main difference between the spread plate and streak plate methods?

• The spread plate method aims to count and isolate bacteria, while the streak plate method aims to get individual cells far apart

• The spread plate method is used for obligate and anaerobic bacteria, while the streak plate method is used for individual bacterial species

• The spread plate method involves transferring a small volume of dilute bacterial mixture, while the streak plate method uses a loopful of culture

• The spread plate method uses liquid tryptic soy agar, while the streak plate method uses solid medium

What is the total number of colonies equivalent to in the pour plate method?

• The number of cells deposited on the agar surface in the streak plate method

• The number of individual colonies formed in the spread plate method

• The number of isolated bacterial colonies evenly distributed on the plate

• The number of viable microorganisms in the diluted sample