Chapter 9 Test questions

In practical terms in everyday use, which of the following statements provides the definition of sterilization?

a) Sterilization eliminates organisms and their spores or endospores
b) sterilization eliminates harmful microorganisms and viruses
c) Sterilization eliminates prions
d) Sterilization eliminates hyperthermophiles

Which of the following terms best describes the disinfecting of cafeteria plates?
A) Sterilization
B) pasteurization
C) antisepsis
D) Sanitization

Which of the following types of radiation is more widely used as an antimicrobial technique?
A) Microwaves
B) Radio Waves
C) Electron beams
D) Visible Light waves

Which of the following adjectives best describes a surgical procedure that is free of microbial contaminants?
A) Sanitized
B) disinfected
C) Aseptic
D) Degermed

Physical removal of microbes without killing them is
A) Degerming
B) Germicidal
C) Sanitization
D) Germistatic
E) Antisepsis

Which  of the following are true about disinfectants?
A) They are used for sterilization
B) They are effective in destroying endospores
C) They are used on inanimate surfaces
D) They are only effective for short periods of time (seconds to mins)
E) They are used on living tissue

Which of the following is an example of sanitization?
A) An autoclave is used to prepare nutrient agar.
B) Heat is used to kill potential pathogens in apple juice
C) A nurse prepares an injection site with an alcohol swab
D) A surgeon washes her hands before surgery
E) A public toilet is treated with disinfectants

Which of the following is bacteriostatic?
A) heating in an oven at 171°c for an hour
B) filtration
C) freezing below 0°c
D) autoclaving
E) flash pasteurization

An antimicrobial agent that_____ will have the most lasting germicidal effect
A) destroys metabolites
B) inhibits enzymatic activity
C) damages DNA
D) damages cytoplasmic membranes
E) damages cell walls

Antimicrobial agents that damage nucleic acids also affect
A) the cell wall
B) protein synthesis
C) the viral envelope
D) endospores
E) the cell membrane