Chapter 31 Microorganisms in Terrestrial Ecosystems

Chapter 31 Microorganisms in Terrestrial Ecosystems

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

True / False Questions

1. Microorganisms in soil are located in thin water films on particle surfaces where oxygen is present at high levels.
   TRUE

ASM Objective: 05.02 Most bacteria in nature live in biofilm communities.
ASM Objective: 06.01 Microbes are essential for life as we know it and the processes that support life (e.g. in biogeochemical cycles and plant and / or animal microbiota).
ASM Topic: Module 05 Microbial Systems
ASM Topic: Module 06 Impact of Microorganisms
Blooms Level: 1. Remember
Learning Outcome: 31.01.01 Differentiate between a mineral and an organic soil, and describe the role of microbes in generating soil organic matter
Section: 31.01
Topic: Microbial Ecology
Topic: Soil Microbiology

2. Oxygen diffuses equally well through waterlogged soil and dry soil.
   FALSE

ASM Objective: 05.02 Most bacteria in nature live in biofilm communities.
ASM Objective: 06.01 Microbes are essential for life as we know it and the processes that support life (e.g. in biogeochemical cycles and plant and / or animal microbiota).
ASM Topic: Module 05 Microbial Systems
ASM Topic: Module 06 Impact of Microorganisms
Blooms Level: 1. Remember
Learning Outcome: 31.01.01 Differentiate between a mineral and an organic soil, and describe the role of microbes in generating soil organic matter
Section: 31.01
Topic: Microbial Ecology
Topic: Soil Microbiology

3. A mineral soil contains less than 20 percent organic carbon while an organic soil contains at least that amount.
   TRUE

ASM Objective: 05.02 Most bacteria in nature live in biofilm communities.
ASM Objective: 06.01 Microbes are essential for life as we know it and the processes that support life (e.g. in biogeochemical cycles and plant and / or animal microbiota).
ASM Topic: Module 05 Microbial Systems
ASM Topic: Module 06 Impact of Microorganisms
Blooms Level: 1. Remember
Learning Outcome: 31.01.01 Differentiate between a mineral and an organic soil, and describe the role of microbes in generating soil organic matter
Section: 31.01
Topic: Microbial Ecology
Topic: Soil Microbiology

Fill in the Blank Questions

4. The common building block of ___________ is the phenylpropene unit, which consists of a hydroxylated six-carbon aromatic benzene ring and a three-carbon linear side chain.
   ligninor  
   Lignin

ASM Objective: 05.01 Microorganisms are ubiquitous and live in diverse and dynamic ecosystems.
ASM Objective: 06.01 Microbes are essential for life as we know it and the processes that support life (e.g. in biogeochemical cycles and plant and / or animal microbiota).
ASM Topic: Module 05 Microbial Systems
ASM Topic: Module 06 Impact of Microorganisms
Blooms Level: 1. Remember
Learning Outcome: 31.01.02 Explain why lignin degradation is confined to only a few types of microbes
Section: 31.01
Topic: Microbial Ecology
Topic: Soil Microbiology