Question 1

All of the following disrupt the cytoplasmic membrane except

Accepted Answer

A) detergents. 
B) quaternary ammonium compounds. 
C) high concentration phenols. 
D) iodine. 
A) detergents. 
B) quaternary ammonium compounds. 
C) high concentration phenols. 
D) iodine.

Question 2

The process of using a cleansing technique to mechanically remove and reduce microorganisms and debris to safe levels is

Accepted Answer

A) disinfection. 
B) sterilization. 
C) antisepsis. 
D) sanitization. 
E) degermation. 
A) disinfection. 
B) sterilization. 
C) antisepsis. 
D) sanitization. 
E) degermation.

Question 3

The shortest time required to kill all the microbes in a sample at a specified temperature is called the

Accepted Answer

A) thermal death point (TDP). 
B) thermal death time (TDT). 
C) sporicidal time. 
D) death phase point. 
E) None of the choices is correct. 
A) thermal death point (TDP). 
B) thermal death time (TDT). 
C) sporicidal time. 
D) death phase point. 
E) None of the choices is correct.

Question 4

_____ is a control method that removes microorganisms rather than inhibiting or killing them.

Accepted Answer

A) Boiling 
B) Sterilization 
C) Radiation 
D) Filtration 
E) Disinfection 
A) Boiling 
B) Sterilization 
C) Radiation 
D) Filtration 
E) Disinfection

Question 5

The presence of organic matter such as saliva and pus can interfere with the actions of disinfectants.

Accepted Answer

A) True 
 B)False

Question 6

Dry heat

Accepted Answer

A) is less efficient than moist heat. 
B) cannot sterilize. 
C) includes tyndallization. 
D) is used in devices called autoclaves. 
E) will sterilize at 12$\circ$C for 15 minutes. 
A) is less efficient than moist heat. 
B) cannot sterilize. 
C) includes tyndallization. 
D) is used in devices called autoclaves. 
E) will sterilize at 12$\circ$C for 15 minutes.

Question 7

Soaps and detergents are very effective as sterilants.

Accepted Answer

A) True 
 B)False

All of the following disrupt the cytoplasmic membrane except

The process of using a cleansing technique to mechanically remove and reduce microorganisms and debris to safe levels is

The shortest time required to kill all the microbes in a sample at a specified temperature is called the

_____ is a control method that removes microorganisms rather than inhibiting or killing them.

The presence of organic matter such as saliva and pus can interfere with the actions of disinfectants.

Dry heat

Soaps and detergents are very effective as sterilants.

Introduction to Microbes and Their Building Blocks

Tools of the Laboratory: Methods for the Culturing and Microscopic Analysis

Bacteria and Archaea

Eukaryotic Cells and Microorganisms

Viral Structure and Life Cycles

Microbial Nutrition and Growth

Microbial Metabolism

Microbial Genetics and Genetic Engineering

Antimicrobial Treatment

Interactions Between Microbes and Humans

Host Defenses I: Overview and Nonspecific Defenses

Host Defenses II: Specific Immunity and Immunization

Disorders in Immunity

Diagnosing Infections

Infectious Diseases Affecting the Skin and Eyes

Infectious Diseases Affecting the Nervous System

Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

Infectious Diseases Affecting the Respiratory Systems

Infectious Diseases Affecting the Gastrointestinal Tract

Infectious Diseases Affecting the Genitourinary System

One Health: The Interconnected Health of the Environment, humans, and Other Animals

Filters

Exam 9: Physical and Chemical Control of Microbes

All of the following disrupt the cytoplasmic membrane except

The process of using a cleansing technique to mechanically remove and reduce microorganisms and debris to safe levels is

The shortest time required to kill all the microbes in a sample at a specified temperature is called the

_____ is a control method that removes microorganisms rather than inhibiting or killing them.

The presence of organic matter such as saliva and pus can interfere with the actions of disinfectants.

Dry heat

Soaps and detergents are very effective as sterilants.

Introduction to Microbes and Their Building Blocks

Tools of the Laboratory: Methods for the Culturing and Microscopic Analysis

Bacteria and Archaea

Eukaryotic Cells and Microorganisms

Viral Structure and Life Cycles

Microbial Nutrition and Growth

Microbial Metabolism

Microbial Genetics and Genetic Engineering

Antimicrobial Treatment

Interactions Between Microbes and Humans

Host Defenses I: Overview and Nonspecific Defenses

Host Defenses II: Specific Immunity and Immunization

Disorders in Immunity

Diagnosing Infections

Infectious Diseases Affecting the Skin and Eyes

Infectious Diseases Affecting the Nervous System

Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

Infectious Diseases Affecting the Respiratory Systems

Infectious Diseases Affecting the Gastrointestinal Tract

Infectious Diseases Affecting the Genitourinary System

One Health: The Interconnected Health of the Environment, humans, and Other Animals

Filters