Question 1

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 2

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

Question 3

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. 
A)  less aggressive. 
B)  equally aggressive. 
C)  more aggressive. 
D)  either more or less aggressive, depending on the situation in question.

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

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 6

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

Question 7

A___________ filter is most often used in scanning electron microscopy.

Accepted Answer

A)  microbistat 
B)  depth 
C)  nucleation track 
D)  membrane 
A)  microbistat 
B)  depth 
C)  nucleation track 
D)  membrane

Question 8

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. 
A)  mean sterilization 
B)  temperature- dependent logarithmic death 
C)  thermal death 
D)  decimal reduction.

Question 9

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

Accepted Answer

penicillin

Question 10

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

Question 11

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 12

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. 
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.

Question 13

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)  bacterial 
A)  fungal 
B)  influenza virus 
C)  parasitic 
D)  bacterial

Question 14

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 15

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 16

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

Question 17

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 18

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

Accepted Answer

A) True 
 B)False

Question 19

Like erythromycin and the aminoglycosides, __________inhibits protein synthesis.

Accepted Answer

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

Question 20

A__________ filter is most often used to filter sterilize liquids.

Accepted Answer

A)  membrane 
B)  microbistat 
C)  depth 
D)  nucleation track 
A)  membrane 
B)  microbistat 
C)  depth 
D)  nucleation track

Exam 26: Microbial Growth Control

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

The most successful agents used for antiviral chemotherapy are

Compared with decontamination, disinfection is

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

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

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

A___________ filter is most often used in scanning electron microscopy.

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

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

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

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

Semisynthetic antibiotics

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

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

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

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

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

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

Like erythromycin and the aminoglycosides, __________inhibits protein synthesis.

A__________ filter is most often used to filter sterilize liquids.

Microorganisms and Microbiology

A Brief Journey to the Microbial World

Cell Structure and Function in Bacteria and Archaea

Nutrition, Culture, and Metabolism of Microorganisms

Microbial Growth

Molecular Biology of Bacteria

Archael and Eukaryotic Molecular Biology

Regulation of Gene Expression

Viruses and Virology

Genetics of Bacteria and Arachaea

Genetic Engineering

Microbial Genomics

Phototrophy, Chemolithotrophy, and Major Biosyntheses

Catabolism of Organic Compounds

Commercial Products and Biotechnology

Microbial Evolution and Systematics

Bacteria: the Proteobacteria

Other Bacteria

Archaea

Eukaryotic Cell Biology and Eukaryotic Microorganisms

Viral Diversity

Methods in Microbial Ecology

Major Microbial Habitats and Diversity

Nutrient Cycles, Biodegradation, and Bioremediation

Microbial Symbioses

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology and Immunology

Epidemiology

Person-To-Person Microbial Diseases

Vectorborne and Soilborne Microbial Pathogens

Wastewater Treatment, Water Purification, and Waterborne Microbial Diseases

Food Preservation and Foodborne Microbial Diseases

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