Worksheets2_Tools of the Lab Review
Total questions: 14
Worksheet time: 7mins
True or False: Sterile medium contains only one species of microbe and no contaminants.
True
False
Check all the media forms below that contain agar.
Broth
Deep
Slant
Plate
Complex
This type of media is composed of precise amounts of pure chemicals. It is essential when studying nutritional requirements of bacteria.
selective media
differential media
chemically defined media
enrichment culture media
T/F: media can be both complex and defined.
True
False
T/F: The addition of Peptone would make a medium complex.
True
False
This type of media contains specific ingredients that help us to visually distinguish one species of microbe from another.
selective media
differential media
chemically defined media
enrichment culture media
All of the following methods can be used to obtain pure culture EXCEPT:
Streak Plate
Pour Plate
Spread Plate
Smear Plate
The resolution of light microscope is:
1000-2000X
200 nm
0.1 mm
10 nm
Of the microscopes listed below, which would be the best choice for visualizing fine details?
Brightfield
Confocal
Darkfield
Phase Contrast
Which type of microscopes are useful for thick specimens?
Brightfield
Confocal
Darkfield
Fluorescent
Acid-fast
Viruses of a typical size could be viewed with which of the following? (Choose all that apply)
Scanning electron microscope
Transmission electron microscope
Confocal microscope
Phase contrast microscopy
Which of these steps kills microbes and attaches them to a glass slide?
Drying
Heat fixation
Ethanol step
Iodine step
What does Crystal Violet do in the Gram stain?
it stains Gram-positive cells purple
stains all cells purple
stains Gram-negative cells purple
stains all cells pink
At the end of the Acid-Fast stain, positive cells would be stained:
pink by Safranin
red by Carbolfuchsin
blue by methylene blue
green by malachite green
