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

Explore all topics

The ratio of a medication's dose that can be tolerated to its effective dose is the therapeutic (MIC/index/range)of the medication.

Free

(Short Answer)

4.9/5

(91)

Question 1

Correct Answer:

Verified

index

Examine the diffusion susceptibility plate results shown in Figure 10.2.Propose an explanation for the appearance of the zone around the S/10 disk,and discuss the implications for therapeutic use of this antibiotic for the pathogen tested.

Free

(Essay)

4.9/5

(74)

Question 2

Correct Answer:

Verified

The ring of colonies within the outermost limit of the zone of inhibition indicates that there are some cells in the population that are less susceptible to the antibiotic than the rest.If this antibiotic were used to treat an infection with this population,the growth of bacteria with some resistance would be promoted at the expense of the more susceptible cells,potentially giving rise to a new variant that is fully resistant.If this were to occur in a patient being treated,the antibiotic therapy would fail,putting the patient's health at risk.Therefore,drug AM would be a poor choice,perhaps the poorest choice,for chemotherapy against this bacterial species.

Some bacteria are resistant to antimicrobials due to the activity of ________,which removes many of them.

Free

(Multiple Choice)

4.9/5

(81)

Question 3

Correct Answer:

Verified

External infections can be treated by (intramuscular/surface/topical)administration,in which a drug is applied directly to the site of infection.

(Short Answer)

4.8/5

(71)

Question 4

Most broad-spectrum antibiotics act by

(Multiple Choice)

4.7/5

(79)

Question 5

Which of the following steps in the folic acid synthesis pathway is specifically inhibited by sulfonamides?

(Multiple Choice)

4.8/5

(79)

Question 6

An antimicrobial that inhibits cell wall synthesis will result in which of the following?

(Multiple Choice)

4.8/5

(87)

Question 7

Pentamidine is an example of an antimicrobial

(Multiple Choice)

4.9/5

(68)

Question 8

The tetracyclines interfere with

(Multiple Choice)

4.9/5

(75)

Question 9

Which of the following antifungals works by binding to ergosterol in membranes?

(Multiple Choice)

4.9/5

(71)

Question 10

A "zone of inhibition" is associated with which of the following tests used to determine the efficacy of antibiotics?

(Multiple Choice)

4.9/5

(83)

Question 11

How does resistance to drugs spread in bacterial populations?

(Multiple Choice)

4.9/5

(68)

Question 12

β-lactamase production is an example of which of the following types of resistance?

(Multiple Choice)

4.8/5

(94)

Question 13

Competition between beneficial microbes and potential pathogens is called microbial (antagonisms/synergy/toxicity).

(Short Answer)

4.8/5

(76)

Question 14

Which of the following drugs specifically targets cell walls that contain mycolic acid?

(Multiple Choice)

4.7/5

(85)

Question 15

The cooperative activity of drugs such as beta-lactam antibiotics and clavulanic acid,a β-lactamase inhibitor,is known as

(Multiple Choice)

4.8/5

(88)

Question 16

Secondary infections that result from the killing of some of the normal microbiota are called (antagonism/superinfections/resistance).

(Short Answer)

4.8/5

(84)

Question 17

Most drugs that inhibit the synthesis of the cell wall act by

(Multiple Choice)

4.9/5

(87)

Question 18

Which of the following is NOT a target of drugs that inhibit protein synthesis?

(Multiple Choice)

4.8/5

(71)

Question 19

Medications administered intravenously can provide much higher effective concentrations than other delivery methods.

(True/False)

4.7/5

(83)

Question 20

Showing 1 - 20 of 75

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

The ratio of a medication's dose that can be tolerated to its effective dose is the therapeutic (MIC/index/range)of the medication.

Examine the diffusion susceptibility plate results shown in Figure 10.2.Propose an explanation for the appearance of the zone around the S/10 disk,and discuss the implications for therapeutic use of this antibiotic for the pathogen tested.

Some bacteria are resistant to antimicrobials due to the activity of ________,which removes many of them.

External infections can be treated by (intramuscular/surface/topical)administration,in which a drug is applied directly to the site of infection.

Most broad-spectrum antibiotics act by

Which of the following steps in the folic acid synthesis pathway is specifically inhibited by sulfonamides?

An antimicrobial that inhibits cell wall synthesis will result in which of the following?

Pentamidine is an example of an antimicrobial

The tetracyclines interfere with

Which of the following antifungals works by binding to ergosterol in membranes?

A "zone of inhibition" is associated with which of the following tests used to determine the efficacy of antibiotics?

How does resistance to drugs spread in bacterial populations?

β-lactamase production is an example of which of the following types of resistance?

Competition between beneficial microbes and potential pathogens is called microbial (antagonisms/synergy/toxicity).

Which of the following drugs specifically targets cell walls that contain mycolic acid?

The cooperative activity of drugs such as beta-lactam antibiotics and clavulanic acid,a β-lactamase inhibitor,is known as

Secondary infections that result from the killing of some of the normal microbiota are called (antagonism/superinfections/resistance).

Most drugs that inhibit the synthesis of the cell wall act by

Which of the following is NOT a target of drugs that inhibit protein synthesis?

Medications administered intravenously can provide much higher effective concentrations than other delivery methods.

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

Immune Disorders

Pathogenic Gram Positive Bacteria

Pathogenic Gram-Negative Cocci and Bacilli

Rickettsias, Chlamydias, Spirochetes, and Vibrios

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic DNA Viruses

Pathogenic RNA Viruses

Applied and Environmental Microbiology

Filters