BIOL 2051 Lab Midterm Exam LSU Questions with 100%
Verified Answers Latest Update
Question: this name is unique to each species and consists of a genus followed by a species
name
Answer:
binomial name
Question: an organism, which has not yet been officially named
Answer:
strains
Question: show how one organism is related to another one
Answer:
phylogenetic tree
Question: contains nutrients, such as carbon and nitrogen, required for cells to grow
Answer:
culture medium
Question: composed of digest of chemically undefined substances such as yeast and meat
extracts
Answer:
complex medium
Question: on for which a precise chemical composition is known
Answer:
defined medium
Question: used for isolation and growth of microorganisms, solid media in a petri dish
Answer:
plates
Question: test tubes containing solid medium, which has been allowed to solidify in an
upright position, and are usually used for anaerobic growth
Answer:
deeps
,Question: deeps are usually used for what?
Answer:
anaerobic growth
Question: test tubes continuing sold medium that has been allowed to solidify at an angle
and the surface of the agar is used for the maintenance of stock cultures of microorganisms
Answer:
slants
Question: slants are usually used for what?
Answer:
the maintenance of stock cultures of microorganisms
Question: the killing or removal of all living organisms and their viruses from a growth
medium
Answer:
sterilization
Question: a sealed device that allows the entrance of steam under pressure
Answer:
autoclave
Question: the autoclave is heated at what temperature?
Answer:
121 deg C at 15 lb per square inch
Question: kills bacteria by oxidative effects
Answer:
Dry heat sterilization
Question: What are autoclaves generally used for?
Answer:
sterilize liquid media and other items that are heat resistant
Question: one of the simplest methods of dry heat sterilization, used to sterilize inoculating
loops
Answer:
, flaming
Question: items to be sterilized are placed in an oven and heated to 170 deg C for 2 hours
Answer:
hot air sterilization
Question: Hot air sterilization is used to sterilize what?
Answer:
glassware
Question: a device with pores too small for the passage of microorganisms but large enough
to allow passage of the liquid or gas
Answer:
filtration
Question: What is an example of an item sterilized by filtration?
Answer:
beer
Question: Heat sensitive objects like plastic petri dishes are sterilized using what method?
Answer:
gaseous chemosterilizers
Question:
Answer:
Question: What is a widely used gas for chemosterilization?
Answer:
ethylene oxide
Question: a method of sterilization used to sterilize wood, metal, and rubber products where
no heat is used in the process.
Answer:
cold sterilization
Question: includes microwaves, UV radiation, X-rays, gamma rays and electrons; type of
sterilization
Verified Answers Latest Update
Question: this name is unique to each species and consists of a genus followed by a species
name
Answer:
binomial name
Question: an organism, which has not yet been officially named
Answer:
strains
Question: show how one organism is related to another one
Answer:
phylogenetic tree
Question: contains nutrients, such as carbon and nitrogen, required for cells to grow
Answer:
culture medium
Question: composed of digest of chemically undefined substances such as yeast and meat
extracts
Answer:
complex medium
Question: on for which a precise chemical composition is known
Answer:
defined medium
Question: used for isolation and growth of microorganisms, solid media in a petri dish
Answer:
plates
Question: test tubes containing solid medium, which has been allowed to solidify in an
upright position, and are usually used for anaerobic growth
Answer:
deeps
,Question: deeps are usually used for what?
Answer:
anaerobic growth
Question: test tubes continuing sold medium that has been allowed to solidify at an angle
and the surface of the agar is used for the maintenance of stock cultures of microorganisms
Answer:
slants
Question: slants are usually used for what?
Answer:
the maintenance of stock cultures of microorganisms
Question: the killing or removal of all living organisms and their viruses from a growth
medium
Answer:
sterilization
Question: a sealed device that allows the entrance of steam under pressure
Answer:
autoclave
Question: the autoclave is heated at what temperature?
Answer:
121 deg C at 15 lb per square inch
Question: kills bacteria by oxidative effects
Answer:
Dry heat sterilization
Question: What are autoclaves generally used for?
Answer:
sterilize liquid media and other items that are heat resistant
Question: one of the simplest methods of dry heat sterilization, used to sterilize inoculating
loops
Answer:
, flaming
Question: items to be sterilized are placed in an oven and heated to 170 deg C for 2 hours
Answer:
hot air sterilization
Question: Hot air sterilization is used to sterilize what?
Answer:
glassware
Question: a device with pores too small for the passage of microorganisms but large enough
to allow passage of the liquid or gas
Answer:
filtration
Question: What is an example of an item sterilized by filtration?
Answer:
beer
Question: Heat sensitive objects like plastic petri dishes are sterilized using what method?
Answer:
gaseous chemosterilizers
Question:
Answer:
Question: What is a widely used gas for chemosterilization?
Answer:
ethylene oxide
Question: a method of sterilization used to sterilize wood, metal, and rubber products where
no heat is used in the process.
Answer:
cold sterilization
Question: includes microwaves, UV radiation, X-rays, gamma rays and electrons; type of
sterilization
