Answer Options:
It takes more time.
Plate counts incorporate both live AND dead cells.
Turbidity incorporates both live AND dead cells.
It takes less time.
Answer: Plate counts incorporate both live AND dead cells.
Question: What is the name of the method used to test the susceptibility of bacteria to antibiotics?
Answer Options:
Fleming Method
Henrick-Winters Method
Mueller-Hinton Method
Kirby-Bauer Method
Answer: Kirby-Bauer Method
Question: True or False: A lytic phage requires an environmental signal before exiting the host genome and release new phage into the environment.
Answer Options:
True
False
Answer: False
Question: Resistant E. coli cells grow on TSA.
Answer Options:
True
False
Answer: True
Question: True or False: Microbes do not cause and/or are not associated with cancers or tumor cells.
Answer Options:
True
False
Answer: False
Question: The spread plate technique involves the use of an______ for even distribution of broth culture on agar’s surface.
Answer Options:
swab
inoculating loop
inoculating needle
cell spreader/hockey stick
none of the above
Answer: cell spreader/hockey stick
Question: Which of the following is NOT a similarity between prokaryotic and eukaryotic microbes:
Answer Options:
Both can be single-celled.
Both have organelles.
Both can be observed using a microscope.
Both have DNA as their genetic material.
All are similarities.
Answer: Both have organelles.
Question: When a negative-strand RNA virus is replicated inside the host cell:
Answer Options:
The RNA must first be reverse transcribed to DNA.
The positive RNA strand acts as the template to make the genome of new viruses.
A positive RNA strand must be synthesized to act as the template for genomes of new viruses.
Answer: A positive RNA strand must be synthesized to act as the template for genomes of new viruses.
Question: You are a new member of the Micro Lab prep staff. In order to set up the best media making assignments for the semester, Professor Walters sets up a simple test: You must calculate the number of cells that grow in a bacterial culture over the course of a 10 hour incubation period. Here’s what you know:
Answer Options:
The culture was started with 27 cells.
The generation time of this organism is 60 minutes.
The incubation period is 10 hours.
What is the total number of cells in the culture at the end of the 10 hour incubation period?
27,000 cells
27,648 cells
16,000 cells
32,768 cells
Answer: 27,648 cells
Question: Antibiotics are resistant to bacteria.
Answer Options:
True
False
Answer: False
Question: A countable plate contains _____ to _____ colonies (numerical format).
Answer: 30 to 300