Bio 250 Quiz 3 UPDATED ACTUAL Questions and CORRECT
Answers
disinfectant An agent used to reduce the number of bacteria on a toilet would most
accurately be called a(n)
D Which of the following best describes the pattern of microbial death?
A) The pattern varies depending on the species.
B) The pattern varies depending on the antimicrobial agent.
C) Not all of the cells in a culture are killed.
D) The cells in a population die at a constant rate.
E) All the cells in a culture die at once.
membrane filtration Which of the following is the best method to sterilize heat-labile solutions?
it cannot be used with heat-labile materials Which of the following is a limitation of the autoclave?
False True/Fale :: Dessiccation is a reliable form of sterilization
False True/False :: Ultraviolet light (UV) causes irreversible breaks in DNA strands.
True True/False :: Autoclaving is the most effective method of moist heat sterilization.
false True/False:: Microorganisms placed in high concentrations of salts and sugars
undergo lysis
ethylene oxide Which of the following chemical agents is used for sterilization?
the formation of hypochlorous acid The antimicrobial activity of chlorine is due to which of the following?
bisphenols Which of the following disinfectants acts by disrupting the plasma membrane?
glutaraldehyde. Oxidizing agents include all of the following EXCEPT
iodine mixed with surfactant An iodophor is a(n)
a sterilizing agent Ethylene oxide
boiling All of the following are effective for destroying prions EXCEPT
bacteriostatic kills vegetative bacterial cells Which of the following pairs of terms is mismatched?
Answers
disinfectant An agent used to reduce the number of bacteria on a toilet would most
accurately be called a(n)
D Which of the following best describes the pattern of microbial death?
A) The pattern varies depending on the species.
B) The pattern varies depending on the antimicrobial agent.
C) Not all of the cells in a culture are killed.
D) The cells in a population die at a constant rate.
E) All the cells in a culture die at once.
membrane filtration Which of the following is the best method to sterilize heat-labile solutions?
it cannot be used with heat-labile materials Which of the following is a limitation of the autoclave?
False True/Fale :: Dessiccation is a reliable form of sterilization
False True/False :: Ultraviolet light (UV) causes irreversible breaks in DNA strands.
True True/False :: Autoclaving is the most effective method of moist heat sterilization.
false True/False:: Microorganisms placed in high concentrations of salts and sugars
undergo lysis
ethylene oxide Which of the following chemical agents is used for sterilization?
the formation of hypochlorous acid The antimicrobial activity of chlorine is due to which of the following?
bisphenols Which of the following disinfectants acts by disrupting the plasma membrane?
glutaraldehyde. Oxidizing agents include all of the following EXCEPT
iodine mixed with surfactant An iodophor is a(n)
a sterilizing agent Ethylene oxide
boiling All of the following are effective for destroying prions EXCEPT
bacteriostatic kills vegetative bacterial cells Which of the following pairs of terms is mismatched?
