Transferring Contaminants – Microbiology Lab Exam 1
The key terms of Microbiology Lab Exam include, Transferring Contaminants.
Why should you not touch your face during Micro lab?
so we don’t get dye on our face
to not contaminate our samples
so you don’t pick your nose
to avoid transferring contaminants from your hands to potential portals of entry – correct
Bunsen burners are safer to use that incinerators when flaming a loop.
True
False – correct
.
Where in the lab are you likely to find bacteria?
door nobs
all of these – correct
freshly washed hands
behind your ear
When you inoculate a Petri dish, where should you put the lid?
it does not matter
place it right side up on the disinfected bench
place it upside down on the disinfected bench so it will not be in the way
hold it a few inches above the agar to limit contamination – correct
When are you allowed to eat or drink in lab?
Never – correct
before you stow your books on the shelf
before you wash your hands
once you have completed the exercise
How often should you plan on taking your lab coat home to wash it?
never; it stays in the lab – correct
at the end of the semester
whenever you spill something on it
at least once a month
When should you disinfect you lab bench?
at the beginning of the period and before you leave – correct
never
after you put your microscope away
before you leave
I use a cotton swab to collect a sample from the bottom of my shoe. After I have finished with the swab, how should I dispose of it?
in the biohazard fume hood
in the UV cabinet
it can go in the regular trash
put it in the red biohazard (kill) bag – correct
I use a cotton swab to collect a sample from the door nob. How should I dispose of the paper wrapper?
none of these
in the biohazard fume hood
it can go in the regular trash – correct
in the red biohazard (kill) bag
When should you wash your hands?
after you collect your books to leave
at the beginning of the period, before you leave, and whenever it feels like you should – correct
before you leave
never
Why do we use Bunsen burners or incinerators?
to dispose of hazardous waste
all of these
to melt agar
to flame sterilize loops and needles – correct
Which of these should be included when you label inoculated plates and tubes?
all of these – correct
sample type
name
date
media type
Why should you not touch your face during Micro lab?
so we don’t get dye on our face
to not contaminate our samples
so you don’t pick your nose
to avoid transferring contaminants from your hands to potential portals of entry – correct
Bunsen burners are safer to use that incinerators when flaming a loop.
True
False – correct
.
Where in the lab are you likely to find bacteria?
door nobs
all of these – correct
freshly washed hands
behind your ear
When you inoculate a Petri dish, where should you put the lid?
it does not matter
place it right side up on the disinfected bench
place it upside down on the disinfected bench so it will not be in the way
hold it a few inches above the agar to limit contamination – correct