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WorksheetsFTE 6 Quiz 2
Total questions: 20
Worksheet time: 12mins
What do you call the dyes that are anionic or have negatively charged groups (example: carboxyls)?
Basic dyes
Acid dyes
Simple dyes
Gram stain
What are groups of microorganisms that cannot grow in the presence of oxygen?
Aerotolerant anaerobes
Anaerobes
Aerobes
Facultative anaerobes
What is the process in which all living cells, viable spores, viruses, and viroids are either destroyed or removed from an object or habitat?
Sanitation
Sterilization
Disinfection
Pasteurization
These groups of bacteria are fermentative (specifically lactose-fermenting) Gram-negative anaerobic enteric bacilli (E. coli-like). What are these?
pathogens
spores
coliform
antigen
It is the process of introducing an infectious agent onto a surface/body to produce immunity. What is it?
Dilution
Staining
Inoculation
Virulence
Identify what equipment is shown in the picture.
Weighing scale
Analytical balance
Digital scale
Identify what is shown in the picture.
Hot air oven
Incubator
Laminar flow hood
Autoclave
Identify what is shown in the picture.
Colony counter
Digital bacteria meter
Bacteriocinerator
Spectrophotometer
Identify what is shown in the picture.
Oven
Autoclave
Incubator
Spectrophotometer
Identify what is shown in the picture.
Incubator
Spectrophotometer
Hot air oven
Colony counter
TRUE or FALSE. Gram-positive bacteria have thinner peptidoglycan layer than gram-negative bacteria.
True
False
TRUE or FALSE. An example of gram-positive bacteria is Acetobacter aceti, the microorganism in charge of producing vinegar.
True
False
Before touching any sample, heat the ( (a) ) in blue flame of bunsen burner until its color change to red and allow cooling (This step will clean and sterilize it).
If you don’t have any bacteria culture, you may use the ( (a) ) to gently scrape inside of your month to get some cheek cells and oral bacteria for microscopic examination.
In most staining procedures, ( (a) ) is achieved by passing the slide through the flame of a Bunsen burner several times (2-3 times), smear side up. Do not overheat the slide.
______________ is a chemical that is added to the solution to intensify the stain.
alcohol solution
acid fast dye
mordant
gram stain
In gram-staining, bacteria that retains the dark violet color after alcohol-acetate solution was used to decolorize them are classified as ___________________.
Gram-positive
Gram-negative
Acid-fast bacteria
What do you call this plating technique?
Streak plate method
Spread plate method
Serial dilution
Pour plate method
What do you call this plating technique?
Streak plate method
Spread plate method
Serial dilution
Pour plate method
What do you call this plating technique?
Streak plate method
Spread plate method
Serial dilution
Pour plate method
