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MCB 2610 Lab 1 Question and answers rated A+ 2024/2025
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MCB 2610 Lab 1 Question and answers rated A+ 2024/2025 MCB 2610 Lab True - correct answer It is your responsibility to make certain that the bunson burner is set up correctly and positioned to avoid burns and fires. True/False Indirect transmission - correct answer What is the MOST l...

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  • October 17, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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MCB 2610 Lab
True - correct answer ✔It is your responsibility to make certain that the
bunson burner is set up correctly and positioned to avoid burns and fires.


True/False


Indirect transmission - correct answer ✔What is the MOST likely mode of
transmission (way agents can be transmitted in the laboratory?


Inform your TA - correct answer ✔Name the first action you should take
following a spill?


At least 20 seconds with soap and water - correct answer ✔Whenever you
leave the laboratory classroom, you must wash your hands for:


Pure Culture - correct answer ✔An isolated sample


Isolate - correct answer ✔Create one separate from all else


Mixed culture - correct answer ✔More than one bacteria


Streak Plate Method - correct answer ✔Quickest and most economical
method of bacterial isolation
Diluted culture by spreading over large area
Make a T

,Mechanical Stage Controls - correct answer ✔Position slide on stage


Dichotomous Key - correct answer ✔Flowchart
If/then
Yes/no


Ferment glucose - correct answer ✔Glucose Test


Decarboxylate ornithine - correct answer ✔Ornithine Test


Ferment lactose - correct answer ✔Use lactose test to determine if bacteria
______


Arabinose - correct answer ✔Ferment arabinose


Utilize citrate - correct answer ✔Citrate


will not - correct answer ✔Medium ________ allow growth of all
microorganisms


Generation Time
Final time-Initial time (must be doubled Ex 600 bacteria 10 min 300 bacteria in
7 minutes Generation time would be 3 minutes - correct answer ✔Time
required for population to double


Isolation of bacteria. Incubate - correct answer ✔Inverted at 37°C for 24
hours

, Upside down - correct answer ✔Inverted


Distribution of Microorganisms: Incubate all plates_______ - correct answer
✔inverted


Simple Stain - correct answer ✔Staining procedures which we use only one
stain


Direct Stain - correct answer ✔A simple stain that colors bacteria


Negative Stain - correct answer ✔Simple stain that colors background, but
leaves bacteria unstained


Winogradsky Column - correct answer ✔Dilute tubes
Liquid agar


Exactly - correct answer ✔If you transfer the loop to a new tube you must
repeat _________ the same procedure as above.


Don't - correct answer ✔do anything with loopful of bacteria until you replace
cap on culture tube


Briefly - correct answer ✔Before and after removing culture from a tube
______ pass tube over flame of bunson burner


Little finger - correct answer ✔When removing culture from capped tube or
slant, remove plastic cap with

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