Question 1

Riftia tube worms make a unique kind of hemoglobin to

Accepted Answer

A)  transport oxygen. 
B)  transport hydrogen sulfide. 
C)  to assist in the transport of carbon dioxide. 
D)  all of the choices 
A)  transport oxygen. 
B)  transport hydrogen sulfide. 
C)  to assist in the transport of carbon dioxide. 
D)  all of the choices

Question 2

Dinoflagellates that exist endosymbiotically within a variety of marine invertebrates are called

Accepted Answer

A)  endoflagellates. 
B)  parasites. 
C)  endotrophic. 
D)  zooxanthellae. 
A)  endoflagellates. 
B)  parasites. 
C)  endotrophic. 
D)  zooxanthellae.

Question 3

When Nitrobacter utilizes nitrite produced from ammonia by Nitrosomonas to obtain energy by converting the nitrite to nitrate, the relationship between the two organisms is

Accepted Answer

A)  commensal. 
B)  amensal. 
C)  mutual. 
D)  parasitic. 
A)  commensal. 
B)  amensal. 
C)  mutual. 
D)  parasitic.

Question 4

Gram-positive bacteria such as Propionibacterium acnes limit the growth of gram-negative bacteria and some fungi on the human skin by converting secreted __________ to compounds with antimicrobial activity.

Accepted Answer

A)  lipids 
B)  organic acids 
C)  salts 
D)  urea 
A)  lipids 
B)  organic acids 
C)  salts 
D)  urea

Question 5

Insects frequently contain bacteria in their cytoplasm, and these bacteria form a mutualistic association with their host.

Accepted Answer

A) True 
 B)False

Question 6

The ectosymbionts of ruminant animals are useful to their hosts in which of the following ways?

Accepted Answer

A)  They digest the cellulose of plant cell walls. 
B)  They produce most of the vitamins needed by the ruminant. 
C)  They convert glucose to organic acids. 
D)  all of the choices 
A)  They digest the cellulose of plant cell walls. 
B)  They produce most of the vitamins needed by the ruminant. 
C)  They convert glucose to organic acids. 
D)  all of the choices

Question 7

Which of the following is not part of the lichen association?

Accepted Answer

A)  ascomycetes 
B)  green algae 
C)  brown algae 
D)  cyanobacteria 
A)  ascomycetes 
B)  green algae 
C)  brown algae 
D)  cyanobacteria

Question 8

Pseudonocardia is an organism that is hosted by

Accepted Answer

A)  wood-eating insects. 
B)  marine invertebrates. 
C)  ants that cultivate fungal gardens. 
D)  people with severe acne. 
A)  wood-eating insects. 
B)  marine invertebrates. 
C)  ants that cultivate fungal gardens. 
D)  people with severe acne.

Question 9

The rickettsial parasite Wolbachia pipientis can

Accepted Answer

A)  sometimes alter the sex of an infected wasp. 
B)  confer toxicity to the sting of an infected wasp. 
C)  enhance the life-span of an infected wasp. 
D)  none of the choices 
A)  sometimes alter the sex of an infected wasp. 
B)  confer toxicity to the sting of an infected wasp. 
C)  enhance the life-span of an infected wasp. 
D)  none of the choices

Question 10

Which of the following is not a category of symbiosis?

Accepted Answer

A)  mutualism 
B)  phoresis 
C)  commensalism 
D)  parasitism 
A)  mutualism 
B)  phoresis 
C)  commensalism 
D)  parasitism

Question 11

The lower respiratory tract has a normal microbiota.

Accepted Answer

A) True 
 B)False

Question 12

A _________ is any disease-producing microorganism.

Accepted Answer

The answer of A _________ is any disease-producing microorganism....

Question 13

Which of the following would you not find in the nasopharynx?

Accepted Answer

A)  Streptococcus pneumoniae 
B)  Neisseria meningitidis 
C)  Haemophilus influenzae 
D)  Branhamella catarrhalis 
A)  Streptococcus pneumoniae 
B)  Neisseria meningitidis 
C)  Haemophilus influenzae 
D)  Branhamella catarrhalis

Question 14

Microbiota of the skin are most likely to be found

Accepted Answer

A)  where there is little moisture. 
B)  where the pH of the skin secretions is below 4. 
C)  in association with oil and sweat glands. 
D)  all of the choices 
A)  where there is little moisture. 
B)  where the pH of the skin secretions is below 4. 
C)  in association with oil and sweat glands. 
D)  all of the choices

Question 15

Coral bleaching where the photosynthetic endosymbiont is lost or becomes non-functional can be caused by temperature increases as small as 2oC.

Accepted Answer

A) True 
 B)False

Question 16

A physical relationship where an organism hosts more than one symbiont is known as a

Accepted Answer

A)  clade. 
B)  consortium. 
C)  partnership. 
D)  cojoining. 
A)  clade. 
B)  consortium. 
C)  partnership. 
D)  cojoining.

Question 17

The filamentous bacteria that grow on the dorsal surface of certain polychaete worms

Accepted Answer

A)  fend off potential predators with toxins. 
B)  carry out photosythesis. 
C)  may provide the worm with protection from toxic metals. 
D)  all of the choices 
A)  fend off potential predators with toxins. 
B)  carry out photosythesis. 
C)  may provide the worm with protection from toxic metals. 
D)  all of the choices

Question 18

Any microorganism that spends a portion of its life associated with another organism of a different species is engaged in

Accepted Answer

A)  symbiosis. 
B)  synergy. 
C)  parasitism. 
D)  commensalism. 
A)  symbiosis. 
B)  synergy. 
C)  parasitism. 
D)  commensalism.

Question 19

A unidirectional process where a specific compound released by one organism has a negative effect on another organism is called

Accepted Answer

A)  predation. 
B)  commensalism. 
C)  negative cooperation. 
D)  amensalism. 
A)  predation. 
B)  commensalism. 
C)  negative cooperation. 
D)  amensalism.

Question 20

In the host-parasite relationship, it is advantageous for the parasite to disable and kill its host as quickly as possible.

Accepted Answer

A) True 
 B)False

Exam 30: Microbial Interactions

Riftia tube worms make a unique kind of hemoglobin to

Dinoflagellates that exist endosymbiotically within a variety of marine invertebrates are called

When Nitrobacter utilizes nitrite produced from ammonia by Nitrosomonas to obtain energy by converting the nitrite to nitrate, the relationship between the two organisms is

Gram-positive bacteria such as Propionibacterium acnes limit the growth of gram-negative bacteria and some fungi on the human skin by converting secreted __________ to compounds with antimicrobial activity.

Insects frequently contain bacteria in their cytoplasm, and these bacteria form a mutualistic association with their host.

The ectosymbionts of ruminant animals are useful to their hosts in which of the following ways?

Which of the following is not part of the lichen association?

Pseudonocardia is an organism that is hosted by

The rickettsial parasite Wolbachia pipientis can

Which of the following is not a category of symbiosis?

The lower respiratory tract has a normal microbiota.

A _________ is any disease-producing microorganism.

Which of the following would you not find in the nasopharynx?

Microbiota of the skin are most likely to be found

Coral bleaching where the photosynthetic endosymbiont is lost or becomes non-functional can be caused by temperature increases as small as 2oC.

A physical relationship where an organism hosts more than one symbiont is known as a

The filamentous bacteria that grow on the dorsal surface of certain polychaete worms

Any microorganism that spends a portion of its life associated with another organism of a different species is engaged in

A unidirectional process where a specific compound released by one organism has a negative effect on another organism is called

In the host-parasite relationship, it is advantageous for the parasite to disable and kill its host as quickly as possible.

The Evolution of Microorganisms and Microbiology

The Study of Microbial Structure: Microscopy and Specimen Preparation

Bacteria and Archaea

Eukaryotic Cell Structure and Function

Viruses and Other Acellular Infectious Agents

Microbial Nutrition

Microbial Growth

Control of Microorganisms in the Environment

Introduction to Metabolism

Catabolism Energy Release and Conservation

Anabolism the Use of Energy in Biosynthesis

Genes Structure, Replication, and Expression

Microbial Genetics Regulation of Gene Expression

Microbial Genetics Mechanisms of Genetic Variation

Recombinant Dna Technology

Microbial Genomics

Microbial Taxonomy and the Evolution of Diversity

The Archaea

Bacteria the Deinococci and Nonproteobacteria Gram Negatives

Bacteria the Proteobacteria

Bacteria the Low G+C Gram Positives

Bacteria the High G+C Gram Positives

The Protists

The Fungi Eumycota

The Viruses

Biogeochemical Cycling

Methods in Microbial Ecology

Microorganisms in Marine and Freshwater Ecosystems

Microorganisms in Terrestrial Ecosystems

Infection and Pathogenicity

Nonspecific Innate Host Resistance

Specific Adaptive Immunity

Antimicrobial Chemotherapy

Clinical Microbiology and Immunology

Epidemiology and Public Health Microbiology

Human Diseases Caused by Viruses and Prions

Human Diseases Caused by Bacteria

Human Diseases Caused by Fungi and Protists

Microbiology of Food

Industrial Microbiology

Applied Environmental Microbiology

Filters

Coral bleaching where the photosynthetic endosymbiont is lost or becomes non-functional can be caused by temperature increases as small as 2^oC.