Question 1

Probiotics

Accepted Answer

A)  involve microbial antagonism. 
B)  are an alternative to the use of chemotherapy. 
C)  include the use of Lactobacillus to relieve diarrhea in children. 
D)  Both A and B are correct. 
E)  A, B, and C are correct. 
A)  involve microbial antagonism. 
B)  are an alternative to the use of chemotherapy. 
C)  include the use of Lactobacillus to relieve diarrhea in children. 
D)  Both A and B are correct. 
E)  A, B, and C are correct.

Question 2

Antimicrobial agents that mimic the chemical structure of DNA building blocks are called .

Accepted Answer

The answer of Antimicrobial agents that mimic the chemical structure...

Question 3

The scientist who coined the term "antibiotic" was

Accepted Answer

A)  Kirby. 
B)  Ehrlich. 
C)  Bauer. 
D)  Fleming. 
E)  Domagk. 
A)  Kirby. 
B)  Ehrlich. 
C)  Bauer. 
D)  Fleming. 
E)  Domagk.

Question 4

All of the following are antibiotic- producing genera of microbes EXCEPT:

Accepted Answer

A)  Mycobacterium 
B)  Cephalosporium 
C)  Bacillus 
D)  Penicillium 
E)  Streptomyces 
A)  Mycobacterium 
B)  Cephalosporium 
C)  Bacillus 
D)  Penicillium 
E)  Streptomyces

Question 5

Sulfonamides are an example of a type of antimicrobial drug known as a(n) _ , because they inhibit certain chemical reactions within bacterial cells.

Accepted Answer

The answer of Sulfonamides are an example of a type...

Question 6

Praziquantel alters the cell membrane permeability of .

Accepted Answer

The answer of Praziquantel alters the cell membrane permeability of...

Question 7

Internal infections can be treated by drugs that are administered orally, intravenously, or .

Accepted Answer

The answer of Internal infections can be treated by drugs...

Question 8

Antimicrobial agents that inhibit protein synthesis can be harmful to humans because of the nature of the eukaryotic mitochondrion.

Accepted Answer

A) True 
 B)False

Question 9

A(n) concentration of a drug is one at which microbes survive, but are not able to grow and reproduce.

Accepted Answer

The answer of A(n) concentration of a drug is one...

Question 10

Sulfonamides are structural analogs of

Accepted Answer

A)  MIC. 
B)  THF. 
C)  MRSA. 
D)  PABA. 
E)  MDR- TB. 
A)  MIC. 
B)  THF. 
C)  MRSA. 
D)  PABA. 
E)  MDR- TB.

Question 11

Antisense nucleic acids are designed to have no side effects against humans.

Accepted Answer

A) True 
 B)False

Question 12

All of the following statements concerning development of antibiotic resistance are true EXCEPT:

Accepted Answer

A)  resistant cells are normally in the minority in a bacterial population. 
B)  it is often mediated by R- plasmids. 
C)  new resistance genes can be gained through transformation, transduction, or conjugation. 
D)  resistance can occur through mutation of existing bacterial genes. 
E)  resistant cells grow more efficiently and quickly than susceptible cells. 
A)  resistant cells are normally in the minority in a bacterial population. 
B)  it is often mediated by R- plasmids. 
C)  new resistance genes can be gained through transformation, transduction, or conjugation. 
D)  resistance can occur through mutation of existing bacterial genes. 
E)  resistant cells grow more efficiently and quickly than susceptible cells.

Question 13

Which of the following is a measurement associated with the broth dilution test?

Accepted Answer

A)  cell lysis 
B)  lack of turbidity 
C)  the zone of inhibition 
D)  Both A and B are correct. 
E)  A, B, and C are correct. 
A)  cell lysis 
B)  lack of turbidity 
C)  the zone of inhibition 
D)  Both A and B are correct. 
E)  A, B, and C are correct.

Question 14

The Etest determines which of the following?

Accepted Answer

A)  susceptibility 
B)  MBC 
C)  MIC 
D)  Both A and C are correct. 
E)  Both B and C are correct. 
A)  susceptibility 
B)  MBC 
C)  MIC 
D)  Both A and C are correct. 
E)  Both B and C are correct.

Question 15

All of the following are possible consequences of inappropriate antibiotic therapy EXCEPT:

Accepted Answer

A)  killing of the normal microbiota. 
B)  increased antibiotic resistance. 
C)  increased microbial antagonism. 
D)  increased incidence of superinfections. 
E)  creation of superbugs. 
A)  killing of the normal microbiota. 
B)  increased antibiotic resistance. 
C)  increased microbial antagonism. 
D)  increased incidence of superinfections. 
E)  creation of superbugs.

Question 16

The abbreviation stands for the smallest amount of a drug that kills a pathogen.

Accepted Answer

The answer of The abbreviation stands for the smallest amount...

Question 17

Which of the following types of antimicrobial drugs make microbes more susceptible to osmotic pressure?

Accepted Answer

A)  drugs that inhibit metabolic pathways 
B)  drugs that inhibit nucleic acid synthesis 
C)  drugs that inhibit protein synthesis 
D)  drugs that inhibit cell wall synthesis 
E)  drugs that block a pathogen's recognition of its host 
A)  drugs that inhibit metabolic pathways 
B)  drugs that inhibit nucleic acid synthesis 
C)  drugs that inhibit protein synthesis 
D)  drugs that inhibit cell wall synthesis 
E)  drugs that block a pathogen's recognition of its host

Question 18

Explain why many antibiotics are effective only against cells that are actively growing and reproducing.

Accepted Answer

When cells are not actively growing and

Question 19

Explain how sulfonamides kill a bacterial cell.

Accepted Answer

Sulfonamides interfere with the metaboli

Question 20

Brain and spinal cord infections are difficult to treat because most antimicrobial drugs cannot diffuse out of the blood into these organs.

Accepted Answer

A) True 
 B)False

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

Probiotics

Antimicrobial agents that mimic the chemical structure of DNA building blocks are called .

The scientist who coined the term "antibiotic" was

All of the following are antibiotic- producing genera of microbes EXCEPT:

Sulfonamides are an example of a type of antimicrobial drug known as a(n) _ , because they inhibit certain chemical reactions within bacterial cells.

Praziquantel alters the cell membrane permeability of .

Internal infections can be treated by drugs that are administered orally, intravenously, or .

Antimicrobial agents that inhibit protein synthesis can be harmful to humans because of the nature of the eukaryotic mitochondrion.

A(n) concentration of a drug is one at which microbes survive, but are not able to grow and reproduce.

Sulfonamides are structural analogs of

Antisense nucleic acids are designed to have no side effects against humans.

All of the following statements concerning development of antibiotic resistance are true EXCEPT:

Which of the following is a measurement associated with the broth dilution test?

The Etest determines which of the following?

All of the following are possible consequences of inappropriate antibiotic therapy EXCEPT:

The abbreviation stands for the smallest amount of a drug that kills a pathogen.

Which of the following types of antimicrobial drugs make microbes more susceptible to osmotic pressure?

Explain why many antibiotics are effective only against cells that are actively growing and reproducing.

Explain how sulfonamides kill a bacterial cell.

Brain and spinal cord infections are difficult to treat because most antimicrobial drugs cannot diffuse out of the blood into these organs.

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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