Question 1

The most successful agents used for antiviral chemotherapy are

Accepted Answer

A)   nucleotide analogs.
B)   protein synthesis inhibitors.
C)   nucleoside analogs.
D)   ATP reductase inhibitors.E) A) and B)
F) B) and C)

Question 2

fi- lactam antibiotics specifically bind to the ___________ that are essential in cell wall formation.

Accepted Answer

penicillin...

Question 3

Neuraminidase inhibitors such as oseltamivir and zanamivir are used to treat which type of infection?

Accepted Answer

A)   fungal
B)   influenza virus
C)   parasitic
D)   bacterialE) A) and B)
F) None of the above

Question 4

Compared with decontamination, disinfection is

Accepted Answer

A)   less aggressive.
B)   equally aggressive.
C)   more aggressive.
D)   either more or less aggressive, depending on the situation in question.E) All of the above
F) A) and B)

Question 5

Both cephalosporins and penicillins have the same mode of action, despite the two having different chemical structures.

Accepted Answer

A) True 
 B)False

Question 6

The__________ involves a lawn of bacteria on an agar plate exposed to small discs containing known amounts of antimicrobial agents.

Accepted Answer

disk diffu...

Question 7

The production of interferon is stimulated by the presence o__________f , which signals a virus infection in an animal cell.

Accepted Answer

The answer of The production of interferon is stimulated by...

Question 8

A__________ filter is most often used to filter sterilize liquids.

Accepted Answer

A)   membrane
B)   microbistat
C)   depth
D)   nucleation trackE) A) and B)
F) A) and C)

Question 9

Pathogens are often encased and grow in large numbers as__________ , covering the surfaces of tissues or medical devices with several layers of microbial cells.

Accepted Answer

The answer of Pathogens are often encased and grow in...

Question 10

The process by which macromolecules lose their structure and ability to function is called

Accepted Answer

A)   thermal death.
B)   sterilization.
C)   denaturation.
D)   none of the above.E) A) and B)
F) B) and C)

Question 11

Because of their limited range of effectiveness, the fluoroquinolones are used primarily in treating infections caused by gram- positive Bacteria.

Accepted Answer

A) True 
 B)False

Question 12

Explain what is meant by selective toxicity. How does selective toxicity relate to the development of chemotherapeutic agents?

Accepted Answer

Selective toxicity is the idea that only...

Question 13

The time required for a tenfold reduction of the viability of a microbial population at a given temperature is called the__________time.

Accepted Answer

A)   mean sterilization
B)   temperature- dependent logarithmic death
C)   thermal death
D)   decimal reduction.E) All of the above
F) None of the above

Question 14

Growth factor analogs that resemble nucleic acids are used in the treatment of viral and fungal infections.

Accepted Answer

A) True 
 B)False

Question 15

Semisynthetic antibiotics

Accepted Answer

A)   are natural antibiotics that have been purified by artificial means.
B)   are natural antibiotics that have been chemically modified in the laboratory.
C)   have an artificially constructed core that stimulates the production of "natural products."
D)   are found in nature, but their rate of production is enhanced in the laboratory.E) B) and C)
F) A) and C)

Question 16

Like erythromycin and the aminoglycosides, __________inhibits protein synthesis.

Accepted Answer

The answer of Like erythromycin and the aminoglycosides, __________inhibits protein...

Question 17

Many countries, such as Australia, France, Germany, and the United States, decontaminate and sterilize certain foods with ionizing radiation.

Accepted Answer

A) True 
 B)False

Question 18

Highly active anti- retroviral therapy (HAART) , which involves a combination of nucleoside analogs and protease inhibitors, is most commonly used to treat infections of

Accepted Answer

A)   HIV.
B)   drug resistant strains of bacteria.
C)   Mycobacterium tuberculosis.
D)   Staphylococcus aureus.E) B) and C)
F) A) and D)

Question 19

A___________ filter is most often used in scanning electron microscopy.

Accepted Answer

A)   microbistat
B)   depth
C)   nucleation track
D)   membraneE) B) and D)
F) B) and C)

Question 20

Write a succinct definition of an antibiotic, and explain why this is an apt term, quite distinct from straight chemical antimicrobics.

Accepted Answer

An antibiotic is a chemical substance pr...

Exam 26: Microbial Growth Control

fi- lactam antibiotics specifically bind to the ___________ that are essential in cell wall formation.

Correct Answerverifiedpenicillin...View AnswerShow Answer

The process by which macromolecules lose their structure and ability to function is called

Correct AnswerverifiedShow Answer

Write a succinct definition of an antibiotic, and explain why this is an apt term, quite distinct from straight chemical antimicrobics.

Correct AnswerverifiedAn antibiotic is a chemical substance pr...View AnswerShow Answer

Many countries, such as Australia, France, Germany, and the United States, decontaminate and sterilize certain foods with ionizing radiation.

Correct AnswerverifiedShow Answer

Neuraminidase inhibitors such as oseltamivir and zanamivir are used to treat which type of infection?

Correct AnswerverifiedShow Answer

Semisynthetic antibiotics

Correct AnswerverifiedShow Answer

The most successful agents used for antiviral chemotherapy are

Correct AnswerverifiedShow Answer

The time required for a tenfold reduction of the viability of a microbial population at a given temperature is called the__________time.

Correct AnswerverifiedShow Answer

Both cephalosporins and penicillins have the same mode of action, despite the two having different chemical structures.

Correct AnswerverifiedShow Answer

Like erythromycin and the aminoglycosides, __________inhibits protein synthesis.

Correct AnswerverifiedShow Answer

A__________ filter is most often used to filter sterilize liquids.

Correct AnswerverifiedShow Answer

Explain what is meant by selective toxicity. How does selective toxicity relate to the development of chemotherapeutic agents?

Correct AnswerverifiedSelective toxicity is the idea that only...View AnswerShow Answer

The production of interferon is stimulated by the presence o__________f , which signals a virus infection in an animal cell.

Correct AnswerverifiedShow Answer

Because of their limited range of effectiveness, the fluoroquinolones are used primarily in treating infections caused by gram- positive Bacteria.

Correct AnswerverifiedShow Answer

Compared with decontamination, disinfection is

Correct AnswerverifiedShow Answer

The__________ involves a lawn of bacteria on an agar plate exposed to small discs containing known amounts of antimicrobial agents.

Correct Answerverifieddisk diffu...View AnswerShow Answer

A___________ filter is most often used in scanning electron microscopy.

Correct AnswerverifiedShow Answer

Pathogens are often encased and grow in large numbers as__________ , covering the surfaces of tissues or medical devices with several layers of microbial cells.

Correct AnswerverifiedShow Answer

Highly active anti- retroviral therapy (HAART) , which involves a combination of nucleoside analogs and protease inhibitors, is most commonly used to treat infections of

Correct AnswerverifiedShow Answer

Growth factor analogs that resemble nucleic acids are used in the treatment of viral and fungal infections.

Correct AnswerverifiedShow Answer

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penicillin...
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An antibiotic is a chemical substance pr...
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Selective toxicity is the idea that only...
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disk diffu...
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