TEST BANK Microbiology with Diseases by Body System By Robert Bauman 5th Edition All Chapters Included

TEST BANK Microbiology with Diseases by Body System By
Robert Bauman 5th Edition All Chapters Included

,Chapter Microbial Ecology and Microbiomes

26.1 Multiple Choice Questions

1) Which of the following is the CORRECT sequence of microbial associations from smallest to
largest?
A) populations, guilds, communities, microhabitats, ecosystem
B) populations, communities, microhabitats, ecosystem, guilds
C) communities, microhabitats, ecosystem, guilds, populations
D) populations, communities, ecosystem, guilds, microhabitats
E) ecosystem, populations, communities, microhabitats, guilds
Answer: A
Bloom's Taxonomy: Comprehension
Section: Environmental Microbiology
Learning Outcome: 26.1

2) A microbiome is composed of
A) biospheres.
B) microhabitats.
C) ecosystems.
D) populations
E) sets of guilds.
Answer: E
Bloom's Taxonomy: Knowledge
Section: Environmental Microbiology
Learning Outcome: 26.1

3) A is a single species in an environment.
A) microhabitat
B) population
C) colony
D) biome
E) guild
Answer: B
Bloom's Taxonomy: Comprehension
Section: Environmental Microbiology
Learning Outcome: 26.1

,4) A guild is composed of
A) populations with similar metabolic activities.
B) microhabitats in a single location.
C) a single species.
D) microbiomes in a single zone.
E) ecosystems.
Answer: A
Bloom's Taxonomy: Comprehension
Section: Environmental Microbiology
Learning Outcome: 26.1

5) The greatest diversity of the human microbiome is found
A) on the skin.
B) in the mouth.
C) in the intestine.
D) in the urinary system.
E) in the respiratory system.
Answer: C
Bloom's Taxonomy: Knowledge
Section: Environmental Microbiology
Learning Outcome: 26.1

6) Which of the following is the best definition of antagonism?
A) competition for limited resources
B) cooperation in utilization of resources
C) microbes living in the same environment without harming each other
D) microbes producing products that interfere with the growth of others
E) competition and producing products that interfere with growth
Answer: D
Bloom's Taxonomy: Comprehension
Section: Environmental Microbiology
Learning Outcome: 26.2

7) What type(s) of microbial interactions take place in a microhabitat?
A) antagonism
B) cooperation
C) competition
D) antagonism and competition
E) a combination of antagonism, cooperation and competition
Answer: E
Bloom's Taxonomy: Comprehension
Section: Environmental Microbiology
Learning Outcome: 26.2

, 8) The use of microorganisms to clean a polluted environment is
A) bioremediation.
B) antagonism.
C) cooperation.
D) genetic engineering.
E) waste treatment.
Answer: A
Bloom's Taxonomy: Knowledge
Section: Environmental Microbiology
Learning Outcome: 26.3

9) In April 2010 an oil rig blowout resulted in a major crude oil spill in the Gulf of Mexico. How
was the majority of the crude oil cleaned out of the Gulf?
A) Humans collected the oil from the surface of the water and along the coastline.
B) Artificial bioremediation, crude-oil eating microbes were poured into the ocean.
C) Natural bioremediation by microbes already present in the ocean.
D) Both human collection of oil and artificial bioremediation.
E) The crude oil still has not been cleaned up.
Answer: C
Bloom's Taxonomy: Comprehension
Section: Environmental Microbiology
Learning Outcome: 26.3

10) What is the source of the acidic pH of some mine runoff?
A) Iron ores are reduced by exposure to the atmosphere.
B) Pyrite is oxidized by exposure to the atmosphere and microbes.
C) Iron ores contain sulfuric acid (H2SO4).
D) Sulfur-containing ores are reduced by exposure to oxygen.
E) Hydrogen gas trapped in ore reacts with the atmosphere to produce hydrochloric acid (HCl).
Answer: B
Bloom's Taxonomy: Knowledge
Section: Environmental Microbiology
Learning Outcome: 26.4

11) Which of the following statements concerning the phosphorus cycle in bacteria is TRUE?
A) The element cycles between different organic molecules.
B) It is the most important process for synthesizing proteins and nucleic acids.
C) The element alternates among several oxidative states.
D) The element changes from insoluble to soluble forms.
E) The element is converted to a gaseous state and is lost to the environment.
Answer: D
Bloom's Taxonomy: Knowledge
Section: Environmental Microbiology
Learning Outcome: 26.5