Openstax Microbiology Lab 8 with
correct ANSWERS 2025 VERIFIED
What is the main purpose of Gram Staining?
neither of these
to identify an unknown bacteria
to identify an unknown virus
both of these - to identify an unknown bacteria
What is this instrument called?
wax pencil
wet pencil
wax pen
wet pen - wax pencil
What is this instrument known as?
None of these
Inoculation tool
Inoculation loop
Bunsen burner - Inoculation loop
What is contained in this drop?
Tap water
Antiseptic
Sterile Water
, Bacterial culture - sterile water
What is being transferred here?
none of these
Antiseptic
Bacteria
viruses - bacteria
Approximately how long did it take for this slide to dry?
1 hour
10 minutes
24 hours
1 minute - 10 minutes
Why is the slide passed through the heat in this step?
to disinfect the slide
to fix the bacteria to the slide
none of these
to kill the bacteria - to fix the bacteria to the slide
What is this liquid (first step in staining)?
Iodine
Crystal violet stain
DNA
Water - Crystal violet stain
correct ANSWERS 2025 VERIFIED
What is the main purpose of Gram Staining?
neither of these
to identify an unknown bacteria
to identify an unknown virus
both of these - to identify an unknown bacteria
What is this instrument called?
wax pencil
wet pencil
wax pen
wet pen - wax pencil
What is this instrument known as?
None of these
Inoculation tool
Inoculation loop
Bunsen burner - Inoculation loop
What is contained in this drop?
Tap water
Antiseptic
Sterile Water
, Bacterial culture - sterile water
What is being transferred here?
none of these
Antiseptic
Bacteria
viruses - bacteria
Approximately how long did it take for this slide to dry?
1 hour
10 minutes
24 hours
1 minute - 10 minutes
Why is the slide passed through the heat in this step?
to disinfect the slide
to fix the bacteria to the slide
none of these
to kill the bacteria - to fix the bacteria to the slide
What is this liquid (first step in staining)?
Iodine
Crystal violet stain
DNA
Water - Crystal violet stain
