Question 1

Optimum growth rate is between 50ᵒC and 80ᵒC for ________.

Accepted Answer

A)  psychrophiles 
B)  mesophiles 
C)  thermophiles 
D)  hyperthermophiles 
A)  psychrophiles 
B)  mesophiles 
C)  thermophiles 
D)  hyperthermophiles

Question 2

A Petroff-Hausser chamber ________.

Accepted Answer

A)  uses either the spread plate or pour plate method 
B)  concentrates low numbers of bacteria before plating 
C)  is used for the rapid determination of cell number by using the apparent absorbance of light 
D)  determines the number of cells/ml counted from known volume of fluid 
A)  uses either the spread plate or pour plate method 
B)  concentrates low numbers of bacteria before plating 
C)  is used for the rapid determination of cell number by using the apparent absorbance of light 
D)  determines the number of cells/ml counted from known volume of fluid

Question 3

An obligate aerobe ________.

Accepted Answer

A)  may use either fermentation or aerobic respiration 
B)  can only grow in anaerobic conditions 
C)  must have oxygen for aerobic respiration 
D)  uses fermentation but is not harmed by presence of oxygen 
A)  may use either fermentation or aerobic respiration 
B)  can only grow in anaerobic conditions 
C)  must have oxygen for aerobic respiration 
D)  uses fermentation but is not harmed by presence of oxygen

Question 4

The procedure illustrated below is ________ test.

Accepted Answer

A)  an ELISA 
B)  a PCR 
C)  an antibody agglutination 
D)  a gel electrophoresis 
A)  an ELISA 
B)  a PCR 
C)  an antibody agglutination 
D)  a gel electrophoresis

Question 5

The bracket marked "y" is the range of temperature where ________ bacteria have their optimum growth temperature.

Accepted Answer

A)  hyperthermophilic 
B)  thermophilic 
C)  mesophilic 
D)  psychrophilic 
A)  hyperthermophilic 
B)  thermophilic 
C)  mesophilic 
D)  psychrophilic

Question 6

Heating a liquid until it boils ________.

Accepted Answer

A)  is used to slow microbial metabolism and growth 
B)  increases the number of microbes so that there is less spoilage of consumable liquids 
C)  breaks H bonds which denatures proteins and nucleic acids and kills many microbes 
D)  forces hot water vapor into endospores 
A)  is used to slow microbial metabolism and growth 
B)  increases the number of microbes so that there is less spoilage of consumable liquids 
C)  breaks H bonds which denatures proteins and nucleic acids and kills many microbes 
D)  forces hot water vapor into endospores

Question 7

________ uses either the spread plate or pour plate method.

Accepted Answer

A)  Petroff-Hausser chamber 
B)  Spectrophotometry 
C)  Dilution Plating 
D)  Filtration 
A)  Petroff-Hausser chamber 
B)  Spectrophotometry 
C)  Dilution Plating 
D)  Filtration

Question 8

The illustration below depicts the growth of bacteria in nutrient agar tubes after stabbing an inoculum of bacteria through the center of the medium to the bottom of the tube. Tube "x" represents the growth of ________.

Accepted Answer

A)  obligate anaerobes 
B)  obligate aerobes 
C)  facultative anaerobes 
D)  aerotolerant anaerobes 
A)  obligate anaerobes 
B)  obligate aerobes 
C)  facultative anaerobes 
D)  aerotolerant anaerobes

Optimum growth rate is between 50ᵒC and 80ᵒC for ________.

A Petroff-Hausser chamber ________.

An obligate aerobe ________.

The procedure illustrated below is ________ test.

The bracket marked "y" is the range of temperature where ________ bacteria have their optimum growth temperature.

Heating a liquid until it boils ________.

________ uses either the spread plate or pour plate method.

The illustration below depicts the growth of bacteria in nutrient agar tubes after stabbing an inoculum of bacteria through the center of the medium to the bottom of the tube. Tube "x" represents the growth of ________.

Microbial World

An Introduction to the Chemical Basis of Life

The Biochemistry of Macromolecules

Microscopy

Prokaryote Organisms

Eukaryotic Cells

Eukaryotic Organisms

Viruses and Infectious Particles

Metabolism

Microbial Genetics and Genetic Engineering

Antimicrobial Agents

Innate Immunity

Adaptive Immunity

Vaccination, Immunoassays, and Immune Disorders

Microbial Pathogenesis

Epidemiology and Infection Control

Diseases of the Respiratory System

Diseases of the Skin and Eyes

Diseases of the Gastrointestinal System

Diseases of the Urogenital System

Diseases of the Nervous System

Diseases of the Cardiovascular and Lymphatic Systems

Environmental and Industrial Microbiology

Filters

Exam 11: Microbial Growth and Control

Optimum growth rate is between 50ᵒC and 80ᵒC for ________.

A Petroff-Hausser chamber ________.

An obligate aerobe ________.

The procedure illustrated below is ________ test.

The bracket marked "y" is the range of temperature where ________ bacteria have their optimum growth temperature.

Heating a liquid until it boils ________.

________ uses either the spread plate or pour plate method.

The illustration below depicts the growth of bacteria in nutrient agar tubes after stabbing an inoculum of bacteria through the center of the medium to the bottom of the tube. Tube "x" represents the growth of ________.

Microbial World

An Introduction to the Chemical Basis of Life

The Biochemistry of Macromolecules

Microscopy

Prokaryote Organisms

Eukaryotic Cells

Eukaryotic Organisms

Viruses and Infectious Particles

Metabolism

Microbial Genetics and Genetic Engineering

Antimicrobial Agents

Innate Immunity

Adaptive Immunity

Vaccination, Immunoassays, and Immune Disorders

Microbial Pathogenesis

Epidemiology and Infection Control

Diseases of the Respiratory System

Diseases of the Skin and Eyes

Diseases of the Gastrointestinal System

Diseases of the Urogenital System

Diseases of the Nervous System

Diseases of the Cardiovascular and Lymphatic Systems

Environmental and Industrial Microbiology

Filters