Principles of Microbial Ecology Quiz

Explore principles of microbial ecology with 18 questions covering energy sources, ecosystem dynamics, microbial diversity, and more.

#1

What is the primary source of energy for most ecosystems?

Wind
Sunlight
Geothermal heat
Chemical reactions
#2

Which of the following is not a primary producer in an ecosystem?

Grass
Algae
Bacteria
Trees
#3

What is the term for a group of organisms of the same species living in the same area?

Community
Ecosystem
Population
Biosphere
#4

Which of the following is NOT a factor influencing microbial growth?

Nutrient availability
pH level
Humidity
Radiation
#5

Which of the following is NOT a characteristic of prokaryotic cells?

Lack of membrane-bound organelles
Presence of a nucleus
Presence of ribosomes
Single circular chromosome
#6

What is the term for the process by which microorganisms convert organic matter into simpler compounds?

Photosynthesis
Decomposition
Fermentation
Respiration
#7

What is the term for the total mass of living organisms in a given area?

Biomass
Abundance
Biodiversity
Population
#8

Which of the following is an example of a decomposer in an ecosystem?

Herbivores
Carnivores
Fungi
Plants
#9

Which of the following is an example of a pioneer species?

Oak tree
Moss
Squirrel
Lion
#10

What is the term for the relationship between two organisms where one benefits and the other is unaffected?

Mutualism
Commensalism
Parasitism
Predation
#11

Which of the following is an example of a biogeochemical cycle?

Water cycle
Rock cycle
Carbon cycle
All of the above
#12

What is the term for the study of the relationships between microorganisms and their biotic and abiotic environment?

Microbial physiology
Microbial ecology
Microbial evolution
Microbial genetics
#13

What is the term for the process by which two species compete for the same limited resource?

Mutualism
Predation
Symbiosis
Competition
#14

Which factor does NOT contribute to microbial diversity?

Temperature
Humidity
Latitude
Altitude
#15

What is the term for the study of the interactions between microorganisms and their environment?

Microbial biogeography
Microbial ecology
Microbial genetics
Microbial evolution
#16

What is the term for the variety of different species in an ecosystem?

Population density
Species richness
Species diversity
Biodiversity
#17

Which of the following is a major factor influencing microbial community structure in soil?

Wind
Temperature
Predation
All of the above
#18

Which of the following is NOT an example of a biogeochemical cycle?

Nitrogen cycle
Phosphorus cycle
Oxygen cycle
Carbon cycle

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