Question 1

Why can microbial resistance to antibiotics and other drugs be considered a primarily genetic phenomenon?

Accepted Answer

Microbial resistance is considered a gen

Question 2

Some bacteria develop resistance to groups of drugs because the drugs are all structurally similar to each other; this is a phenomenon known as .

Accepted Answer

The answer of Some bacteria develop resistance to groups of...

Question 3

Competition between beneficial microbes and potential pathogens is called .

Accepted Answer

microbial

Question 4

Which of the following types of drugs interferes with events at the end of the HIV replication cycle?

Accepted Answer

A)  protease inhibitors 
B)  DNA gyrase inhibitors 
C)  attachment antagonists 
D)  reverse transcriptase inhibitors 
E)  nucleotide analogs 
A)  protease inhibitors 
B)  DNA gyrase inhibitors 
C)  attachment antagonists 
D)  reverse transcriptase inhibitors 
E)  nucleotide analogs

Question 5

Any drug that acts against a disease is called a(n) _ agent.

Accepted Answer

The answer of Any drug that acts against a disease...

Question 6

If a subculture of an MIC test grows in an MBC test, the concentration of the drug was bactericidal.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is NOT caused by the disruption of normal microbiota as a result of antimicrobial drug therapy?

Accepted Answer

A)  thrush 
B)  pseudomembranous colitis 
C)  anaphylactic shock 
D)  vaginitis 
E)  All of these are caused by the disruption of normal microbiota. 
A)  thrush 
B)  pseudomembranous colitis 
C)  anaphylactic shock 
D)  vaginitis 
E)  All of these are caused by the disruption of normal microbiota.

Question 8

Because they kill many different types of microbes, broad- spectrum antibiotics are more desirable than narrow- spectrum drugs.

Accepted Answer

A) True 
 B)False

Question 9

Disruption of the normal microbiota can result in infections caused by which of the following microbes?

Accepted Answer

A)  Mycobacterium 
B)  Candida albicans 
C)  Clostridium difficile 
D)  Both A and C are correct. 
E)  Both B and C are correct. 
A)  Mycobacterium 
B)  Candida albicans 
C)  Clostridium difficile 
D)  Both A and C are correct. 
E)  Both B and C are correct.

Question 10

It is inappropriate to prescribe antibacterial agents to treat colds or flu because

Accepted Answer

A)  these diseases can act synergistically with each other. 
B)  these diseases are caused by viruses. 
C)  the microbes involved can develop resistance rapidly. 
D)  these diseases are transmitted by spores, which are hard to kill. 
E)  these diseases exhibit cross resistance. 
A)  these diseases can act synergistically with each other. 
B)  these diseases are caused by viruses. 
C)  the microbes involved can develop resistance rapidly. 
D)  these diseases are transmitted by spores, which are hard to kill. 
E)  these diseases exhibit cross resistance.

Question 11

Beta- lactam antibiotics have an effect on which of the following types of cells?

Accepted Answer

A)  bacterial cells 
B)  animal cells 
C)  fungal cells 
D)  Both B and C are correct. 
E)  Both A and B are correct. 
A)  bacterial cells 
B)  animal cells 
C)  fungal cells 
D)  Both B and C are correct. 
E)  Both A and B are correct.

Question 12

Explain the concept of selective toxicity.

Accepted Answer

Selective toxicity is the underlying pri

Question 13

The type of antimicrobial drug that would be least toxic to humans is a drug that

Accepted Answer

A)  inhibits protein synthesis. 
B)  inhibits the synthesis of the cell wall. 
C)  inhibits nucleic acid synthesis. 
D)  disrupts the cytoplasmic membrane. 
E)  inhibits metabolic pathways. 
A)  inhibits protein synthesis. 
B)  inhibits the synthesis of the cell wall. 
C)  inhibits nucleic acid synthesis. 
D)  disrupts the cytoplasmic membrane. 
E)  inhibits metabolic pathways.

Question 14

Superinfections are serious secondary infections that result from killing the _ _.

Accepted Answer

The answer of Superinfections are serious secondary infections that result...

Question 15

Drugs that inhibit nucleic acid synthesis include quinolones, rifampin, and actinomycin.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following groups of drugs can become incorporated into the bones and teeth of a fetus?

Accepted Answer

A)  beta- lactams 
B)  quinolones 
C)  sulfonamides 
D)  tetracyclines 
E)  aminoglycosides 
A)  beta- lactams 
B)  quinolones 
C)  sulfonamides 
D)  tetracyclines 
E)  aminoglycosides

Question 17

Alterations in the structure of which of the following are an important aspect of Gram- negative bacterial resistance to antimicrobial drugs?

Accepted Answer

A)  mitochondria 
B)  plasmids 
C)  ribosomes 
D)  cell membrane 
E)  porins 
A)  mitochondria 
B)  plasmids 
C)  ribosomes 
D)  cell membrane 
E)  porins

Question 18

Which of the following is a class of drugs that inhibits the formation of fungal cell walls?

Accepted Answer

A)  allylamines 
B)  aminoglycosides 
C)  beta- lactams 
D)  echinocandins 
E)  monobactams 
A)  allylamines 
B)  aminoglycosides 
C)  beta- lactams 
D)  echinocandins 
E)  monobactams

Question 19

An infection of which of the following organs would be the hardest to treat with antimicrobial drugs?

Accepted Answer

A)  colon 
B)  brain 
C)  liver 
D)  kidneys 
E)  heart 
A)  colon 
B)  brain 
C)  liver 
D)  kidneys 
E)  heart

Question 20

drugs are semisynthetic drugs developed to combat resistance against an existing drug.

Accepted Answer

The answer of drugs are semisynthetic drugs developed to combat...

Exam 10: Controlling Microbial Growth in the Body: Antimicrobial Drugs

Why can microbial resistance to antibiotics and other drugs be considered a primarily genetic phenomenon?

Some bacteria develop resistance to groups of drugs because the drugs are all structurally similar to each other; this is a phenomenon known as .

Competition between beneficial microbes and potential pathogens is called .

Which of the following types of drugs interferes with events at the end of the HIV replication cycle?

Any drug that acts against a disease is called a(n) _ agent.

If a subculture of an MIC test grows in an MBC test, the concentration of the drug was bactericidal.

Which of the following is NOT caused by the disruption of normal microbiota as a result of antimicrobial drug therapy?

Because they kill many different types of microbes, broad- spectrum antibiotics are more desirable than narrow- spectrum drugs.

Disruption of the normal microbiota can result in infections caused by which of the following microbes?

It is inappropriate to prescribe antibacterial agents to treat colds or flu because

Beta- lactam antibiotics have an effect on which of the following types of cells?

Explain the concept of selective toxicity.

The type of antimicrobial drug that would be least toxic to humans is a drug that

Superinfections are serious secondary infections that result from killing the _ _.

Drugs that inhibit nucleic acid synthesis include quinolones, rifampin, and actinomycin.

Which of the following groups of drugs can become incorporated into the bones and teeth of a fetus?

Alterations in the structure of which of the following are an important aspect of Gram- negative bacterial resistance to antimicrobial drugs?

Which of the following is a class of drugs that inhibits the formation of fungal cell walls?

An infection of which of the following organs would be the hardest to treat with antimicrobial drugs?

drugs are semisynthetic drugs developed to combat resistance against an existing drug.

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant Dna Technology

Controlling Microbial Growth in the Environment

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Aids and Other Immune Disorders

Microbial Diseases of the Skin and Wounds

Microbial Diseases of the Nervous System and Eyes

Microbial Cardiovascular and Systemic Diseases

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Diseases of the Urinary and Reproductive Systems

Applied and Environmental Microbiology

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