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PRACTICAL: MCB 2610 Uconn Dr. Rossi; Questions and Answers 100% Solved $11.99   Add to cart

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PRACTICAL: MCB 2610 Uconn Dr. Rossi; Questions and Answers 100% Solved

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PRACTICAL: MCB 2610 Uconn Dr. Rossi; Questions and Answers 100% Solved What is the process of contamination control? CORRECT ANS-Aseptic technique What are pipettes CORRECT ANS-calibrated glass tubes used to measure and dispense small volumes of liquids

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  • September 3, 2024
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  • Questions & answers
  • MCB 2610
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PRACTICAL: MCB 2610 Uconn Dr. Rossi; Questions and
Answers 100% Solved
What is the process of contamination control? CORRECT ANS-Aseptic technique




What are pipettes CORRECT ANS-calibrated glass tubes used to measure and dispense

small volumes of liquids




What color is the bigger vs. smaller micropipettors pipettes? CORRECT ANS-Green - bigger


Blue - smaller




What is the purpose of isolating bacteria? CORRECT ANS-To establish a PURE CULTURE, to

be able to study to study the physiology and morphology of a particular bacterial type




What is the quickest and most economical method of bacterial isolation? CORRECT ANS-

Streak plate method




What must you use to view items under 100x? CORRECT ANS-immersion oil

, PRACTICAL: MCB 2610 Uconn Dr. Rossi; Questions and
Answers 100% Solved
What does parfocal mean? CORRECT ANS-It means that if you focus the specimen in one

objective, it'll be in approximate focus in all objectives




What is a simple stain? CORRECT ANS-Staining procedures that only use one stain




What is a direct stain? CORRECT ANS-A simple stain that colors the bacteria




What is a negative stain? CORRECT ANS-Simple stain that stains the background but leaves

the bacteria unstained




What is the purpose of heat fixing? CORRECT ANS-1. Denaturing bacterial enzymes to

prevent autolysis


2. Enhances the adherence of bacterial cells to microscope slide




In Gram stains, why can't Gram negative bacteria retain the crystal violet? CORRECT ANS-

Because Gram negative bacteria have an outer membrane and a thinner layer of

peptidoglycan, which are easily depolarized and can only retain the counterstain (Safranin-

pink)

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