BIOL 2030 OPENSTAX MICROBIOLOGY
FINAL PAPER PRACTICE QUESTIONS WITH
VERIFIED ANSWERS PACKAGE
●● Prokaryote habits and functions
Answer: ubiquitous and numerous; Found in nearly every environment
on Earth even when conditions are unfavorable: hot springs, ice caps,
air, high pressure, on and in the human body, etc
●● Ecosystems and Food Chains
Answer: Prokaryotes are important as decomposers, fixers, and are often
the bottom of food chains. They break down organic material, stabilize
soil, supplement plant nutrition.
Ex: Salt-loving (halophilic) bacteria in salty water, like the Dead Sea,
decompose dead brine shrimp and nourish young brine shrimp and flies
with their metabolic metabolism.
●● resiliant and adaptable
Answer: Are able to use a wide variety of material for energy, carbon,
and as electron acceptors. Often are metabolically flexible and able to
switch from one pathway to another when resources become scarce.
●● fixing
,Answer: Some prokaryotes are able to capture or fix elements like
carbon and nitrogen
●● Bioremediation
Answer: Because of their wide metabolic capabilities prokaryotes can be
useful in removing harmful substances from the environment (oil, PCBs,
plastics, etc.
●● Pathogenic
Answer: Some are capable of causing illness or infection once inside the
body
●● climate change
Answer: May be involved in climate change -melting of permafrost and
production of greenhouse gases.
●● Halophiles
Answer: Some prokaryotes, called halophiles, can thrive in extremely
salty environments such as the Dead Sea, pictured here.(b)The archaeon
Halobacterium salinarum, shown here in an electron micrograph, is a
halophile that lives in the Dead Sea.
●● Halobacterium salinarum
Answer: halophile that lives in the dead sea
, ●● Nitrogen-fixing bacteria
Answer: Nitrogen-fixing bacteria such as Rhizobiumlive in the root
nodules of legumes such as clover.(b)This micrograph of the root nodule
shows bacteroids (bacterium-like cells or modified bacterial cells) within
the plant cells. The bacteroids are visible as darker ovals within the
larger plant cell.
●● Legionella
Answer: the bacterium responsible for causing Legionnaire's disease
●● community
Answer: Prokaryotes are part of a group of interacting populations of
organisms.u
●● population
Answer: Group of individual organisms belonging to the same biological
species and limited to a certain geographical area
●● cooperative interactions
Answer: interactions between populations that are beneficial
●● competitive interactions
Answer: Competition for resources between populations.
FINAL PAPER PRACTICE QUESTIONS WITH
VERIFIED ANSWERS PACKAGE
●● Prokaryote habits and functions
Answer: ubiquitous and numerous; Found in nearly every environment
on Earth even when conditions are unfavorable: hot springs, ice caps,
air, high pressure, on and in the human body, etc
●● Ecosystems and Food Chains
Answer: Prokaryotes are important as decomposers, fixers, and are often
the bottom of food chains. They break down organic material, stabilize
soil, supplement plant nutrition.
Ex: Salt-loving (halophilic) bacteria in salty water, like the Dead Sea,
decompose dead brine shrimp and nourish young brine shrimp and flies
with their metabolic metabolism.
●● resiliant and adaptable
Answer: Are able to use a wide variety of material for energy, carbon,
and as electron acceptors. Often are metabolically flexible and able to
switch from one pathway to another when resources become scarce.
●● fixing
,Answer: Some prokaryotes are able to capture or fix elements like
carbon and nitrogen
●● Bioremediation
Answer: Because of their wide metabolic capabilities prokaryotes can be
useful in removing harmful substances from the environment (oil, PCBs,
plastics, etc.
●● Pathogenic
Answer: Some are capable of causing illness or infection once inside the
body
●● climate change
Answer: May be involved in climate change -melting of permafrost and
production of greenhouse gases.
●● Halophiles
Answer: Some prokaryotes, called halophiles, can thrive in extremely
salty environments such as the Dead Sea, pictured here.(b)The archaeon
Halobacterium salinarum, shown here in an electron micrograph, is a
halophile that lives in the Dead Sea.
●● Halobacterium salinarum
Answer: halophile that lives in the dead sea
, ●● Nitrogen-fixing bacteria
Answer: Nitrogen-fixing bacteria such as Rhizobiumlive in the root
nodules of legumes such as clover.(b)This micrograph of the root nodule
shows bacteroids (bacterium-like cells or modified bacterial cells) within
the plant cells. The bacteroids are visible as darker ovals within the
larger plant cell.
●● Legionella
Answer: the bacterium responsible for causing Legionnaire's disease
●● community
Answer: Prokaryotes are part of a group of interacting populations of
organisms.u
●● population
Answer: Group of individual organisms belonging to the same biological
species and limited to a certain geographical area
●● cooperative interactions
Answer: interactions between populations that are beneficial
●● competitive interactions
Answer: Competition for resources between populations.
