Question 1

Which of the following is mismatched?

Accepted Answer

A) Gracilicutes - gram-negative cell walls 
B) Firmicutes - gram-positive cell walls 
C) Tenericutes - waxy acid-fast cell walls 
D) Mendosicutes - archaea cell walls 
E) None of the choices are correct. 
A) Gracilicutes - gram-negative cell walls 
B) Firmicutes - gram-positive cell walls 
C) Tenericutes - waxy acid-fast cell walls 
D) Mendosicutes - archaea cell walls 
E) None of the choices are correct. C

Question 2

Cells form a ________ arrangement when cells in a chain snap back upon each other forming a row of cells oriented side by side.

Accepted Answer

A) tetrad 
B) strep 
C) staph 
D) sarcina 
E) palisade 
A) tetrad 
B) strep 
C) staph 
D) sarcina 
E) palisade E

Question 3

An RN in a primary care office is caring for a 15-year-old male with severe gastrointestinal distress. The patient reports four days of diarrhea, vomiting, and intermittent fever. A stool culture was ordered in an attempt to identify a disease-causing pathogen. 
-Microscopic analysis revealed the presence of gram-negative bacilli in the patient's stool. Based upon this information,which of the following accurately describes the appearance of the bacterium under magnification?

Accepted Answer

A) Red spheres 
B) Purple rods 
C) Purple spheres 
D) Red rods 
A) Red spheres 
B) Purple rods 
C) Purple spheres 
D) Red rods D

Question 4

The two functions of bacterial appendages are ________.

Accepted Answer

A) attachment and protection 
B) attachment and motility 
C) motility and slime production 
D) energy reactions and synthesis 
E) protection and motility 
A) attachment and protection 
B) attachment and motility 
C) motility and slime production 
D) energy reactions and synthesis 
E) protection and motility

Question 5

Peptidoglycan is a unique macromolecule found in bacterial ________.

Accepted Answer

A) cell walls 
B) cell membranes 
C) capsules 
D) slime layers 
E) inclusions 
A) cell walls 
B) cell membranes 
C) capsules 
D) slime layers 
E) inclusions

Question 6

A bacterial cell wall that has primarily peptidoglycan with small amounts of teichoic acid and lipoteichoic acid is ________.

Accepted Answer

A) gram-negative 
B) gram-positive 
C) found in archaea 
D) a spheroplast 
E) acid fast 
A) gram-negative 
B) gram-positive 
C) found in archaea 
D) a spheroplast 
E) acid fast

Question 7

Endospores of certain bacterial species can enter tissues in the human body,germinate,and cause an infectious disease.

Accepted Answer

A) True 
 B)False

Question 8

Some bacteria have a cytoskeleton of protein polymers to help maintain their shape.

Accepted Answer

A) True 
 B)False

Question 9

The RN provides education for the family about the laboratory findings.Which of the following statements correctly describes the medical importance of a bacterial capsule?

Accepted Answer

A) A capsule is a slime layer that causes a bacterium to attach to body tissues,making it invasive and difficult to treat. 
B) A capsule allows a bacterium to survive in a dormant state,creating a prolonged course of illness. 
C) A capsule decreases a bacterium's pathogenicity and makes it susceptible to antibiotic treatment. 
D) A capsule can protect a bacterium from the phagocytic activities of white blood cells,enhancing its ability to cause disease. 
A) A capsule is a slime layer that causes a bacterium to attach to body tissues,making it invasive and difficult to treat. 
B) A capsule allows a bacterium to survive in a dormant state,creating a prolonged course of illness. 
C) A capsule decreases a bacterium's pathogenicity and makes it susceptible to antibiotic treatment. 
D) A capsule can protect a bacterium from the phagocytic activities of white blood cells,enhancing its ability to cause disease.

Question 10

Lipopolysaccharide is an important cell wall component of ________.

Accepted Answer

A) gram-negative bacteria 
B) gram-positive bacteria 
C) acid-fast bacteria 
D) mycoplasmas 
E) protoplasts 
A) gram-negative bacteria 
B) gram-positive bacteria 
C) acid-fast bacteria 
D) mycoplasmas 
E) protoplasts

Question 11

The short,numerous appendages used by some bacterial cells for adhering to surfaces are called ________.

Accepted Answer

A) flagella 
B) cilia 
C) fimbriae 
D) periplasmic flagella (axial filaments) 
E) sex pili 
A) flagella 
B) cilia 
C) fimbriae 
D) periplasmic flagella (axial filaments) 
E) sex pili

Question 12

Which of the following is mismatched?

Accepted Answer

A) Ribosomes - protein synthesis 
B) Inclusions - excess cell nutrients and materials 
C) Plasmids - genes essential for growth and metabolism 
D) Nucleoid - hereditary material 
E) Cytoplasm - dense,gelatinous solution 
A) Ribosomes - protein synthesis 
B) Inclusions - excess cell nutrients and materials 
C) Plasmids - genes essential for growth and metabolism 
D) Nucleoid - hereditary material 
E) Cytoplasm - dense,gelatinous solution

Question 13

A 23 year-old female presents at a walk-in clinic with a fever,swollen lymph nodes and yellow spots on the throat.A rapid strep test comes back positive,confirming an infection with Streptococcus pyogenes,which has a thick layer of  peptidoglycan in its cell wall.In which of the following taxonomic divisions does S.pyogenes belong?

Accepted Answer

A) Firmicutes 
B) Gracilicutes 
C) Mendosicutes 
D) Tenericutes 
A) Firmicutes 
B) Gracilicutes 
C) Mendosicutes 
D) Tenericutes

Question 14

Bacterial endospores are not produced by ________.

Accepted Answer

A) Staphylococcus 
B) Sporosarcina 
C) Bacillus 
D) Clostridium 
E) All of the choices are correct. 
A) Staphylococcus 
B) Sporosarcina 
C) Bacillus 
D) Clostridium 
E) All of the choices are correct.

Question 15

A chain of rod-shaped cells would be called a(an)________.

Accepted Answer

A) streptobacillus 
B) staphylobacillus 
C) streptococcus 
D) staphylococcus 
E) sarcina 
A) streptobacillus 
B) staphylobacillus 
C) streptococcus 
D) staphylococcus 
E) sarcina

Question 16

Pili used for conjugation are only found on gram-negative bacteria.

Accepted Answer

A) True 
 B)False

Question 17

Gram-negative bacteria do not have peptidoglycan in their cell walls.

Accepted Answer

A) True 
 B)False

Question 18

The outcome of the Gram stain is based on differences in the cell's ________.

Accepted Answer

A) ribosomes 
B) inclusions 
C) wall 
D) membrane 
E) flagella 
A) ribosomes 
B) inclusions 
C) wall 
D) membrane 
E) flagella

Question 19

If you observe rod-shaped,pink cells on a slide that had just been Gram-stained,you can assume that their cell walls contain endotoxin.

Accepted Answer

A) True 
 B)False

Question 20

Both gram-positive and gram-negative cells have outer membranes.

Accepted Answer

A) True 
 B)False

Which of the following is mismatched?

Cells form a ________ arrangement when cells in a chain snap back upon each other forming a row of cells oriented side by side.

The two functions of bacterial appendages are ________.

Peptidoglycan is a unique macromolecule found in bacterial ________.

A bacterial cell wall that has primarily peptidoglycan with small amounts of teichoic acid and lipoteichoic acid is ________.

Endospores of certain bacterial species can enter tissues in the human body,germinate,and cause an infectious disease.

Some bacteria have a cytoskeleton of protein polymers to help maintain their shape.

The RN provides education for the family about the laboratory findings.Which of the following statements correctly describes the medical importance of a bacterial capsule?

Lipopolysaccharide is an important cell wall component of ________.

The short,numerous appendages used by some bacterial cells for adhering to surfaces are called ________.

Which of the following is mismatched?

Bacterial endospores are not produced by ________.

A chain of rod-shaped cells would be called a(an)________.

Pili used for conjugation are only found on gram-negative bacteria.

Gram-negative bacteria do not have peptidoglycan in their cell walls.

The outcome of the Gram stain is based on differences in the cell's ________.

If you observe rod-shaped,pink cells on a slide that had just been Gram-stained,you can assume that their cell walls contain endotoxin.

Both gram-positive and gram-negative cells have outer membranes.

Introduction to Microbes and Their Building Blocks

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

Eukaryotic Cells and Microorganisms

Viral Structure and Multiplication

Microbial Nutrition and Growth

Microbial Metabolism

Microbial Genetics and Genetic Engineering

Physical and Chemical Control of Microbes

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

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Exam 3: Bacteria and Archaea

Which of the following is mismatched?

Cells form a ________ arrangement when cells in a chain snap back upon each other forming a row of cells oriented side by side.

The two functions of bacterial appendages are ________.

Peptidoglycan is a unique macromolecule found in bacterial ________.

A bacterial cell wall that has primarily peptidoglycan with small amounts of teichoic acid and lipoteichoic acid is ________.

Endospores of certain bacterial species can enter tissues in the human body,germinate,and cause an infectious disease.

Some bacteria have a cytoskeleton of protein polymers to help maintain their shape.

The RN provides education for the family about the laboratory findings.Which of the following statements correctly describes the medical importance of a bacterial capsule?

Lipopolysaccharide is an important cell wall component of ________.

The short,numerous appendages used by some bacterial cells for adhering to surfaces are called ________.

Which of the following is mismatched?

Bacterial endospores are not produced by ________.

A chain of rod-shaped cells would be called a(an)________.

Pili used for conjugation are only found on gram-negative bacteria.

Gram-negative bacteria do not have peptidoglycan in their cell walls.

The outcome of the Gram stain is based on differences in the cell's ________.

If you observe rod-shaped,pink cells on a slide that had just been Gram-stained,you can assume that their cell walls contain endotoxin.

Both gram-positive and gram-negative cells have outer membranes.

Introduction to Microbes and Their Building Blocks

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

Eukaryotic Cells and Microorganisms

Viral Structure and Multiplication

Microbial Nutrition and Growth

Microbial Metabolism

Microbial Genetics and Genetic Engineering

Physical and Chemical Control of Microbes

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