MIBO 3500 Exam 4 UPDATED ACTUAL Exam Questions and CORRECT Answers
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MIBO 3500
MIBO 3500 Exam 4 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Partnership between organisms of different species or groups is called ____. - CORRECT
ANSWER- symbiosis
Microbial symbiotic associations include a full range of both _____ and _____ relationships.
- CORRECT ANSWER- positive...
MIBO 3500 Exam 4 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Partnership between organisms of different species or groups is called ____. - CORRECT
ANSWER✔✔- symbiosis
Microbial symbiotic associations include a full range of both _____ and _____ relationships.
- CORRECT ANSWER✔✔- positive, negative
True or false: In symbiosis, partners may evolve in response to each other and the partnership
can change over time. - CORRECT ANSWER✔✔- True
A microbe may 'partner' with _____, _____, or _____. - CORRECT ANSWER✔✔- another
microbe, animal, or plant
In _____, each partner species benefits from the other(s). - CORRECT ANSWER✔✔-
mutualism
In mutualism, partners often have noticeable _____ (positive/negative) outcomes if separated.
- CORRECT ANSWER✔✔- negative
True or false: In mutualism, partners grow adequately even if separated. - CORRECT
ANSWER✔✔- False: In mutualism, partners may even fail to grow independently.
What is an example of mutualism? - CORRECT ANSWER✔✔- Honeybees and gut
microbiome
Honeybees have a gut microbiome consisting of approximately _____(#) bacterial species. -
CORRECT ANSWER✔✔- 9
Honeybees' gut microbiome assist the bees in _____ and _____. This is an example of _____
support. - CORRECT ANSWER✔✔- digestion
,fermentation of plant cell components
nutritional
In honeybee mutualism, the bee provides the _____ for the bacteria (nutritional support) and
a _____. - CORRECT ANSWER✔✔- substrates for catabolism
protective environment
In honeybee mutualism, if separated, the bees show _____, _____, _____, and _____. -
CORRECT ANSWER✔✔- nutritional depravation
weight gain
immune dysfunction
overall reduced fitness
In honeybee mutualism, if separated, the bacteria are prone to _____ and _____. - CORRECT
ANSWER✔✔- reduced population growth
increased predation
_____ is an optional cooperation where partners benefit, but can grow independently. -
CORRECT ANSWER✔✔- Synergism
Synergism is an _____ cooperation where partners benefit, but _____(can/cannot) grow
independently. - CORRECT ANSWER✔✔- optional
can
True or false: In synergism, partners are easily separated with little evidence of severe
reduction in overall fitness. - CORRECT ANSWER✔✔- True
The relationship between _____ is often synergistic. - CORRECT ANSWER✔✔- normal
flora species
What is an example of synergism? - CORRECT ANSWER✔✔- human gut flora
,In synergism in human gut flora in the _____ of humans, many bacteria _____ we consume,
releasing _____. - CORRECT ANSWER✔✔- lower GI tract
ferment sugars
H2 and CO2
In synergism in human gut flora, the H2 and CO2 released by bacteria in the human gut are
considered _____. - CORRECT ANSWER✔✔- bacterial waste
In synergism in human gut flora, methanogens (Archaea) can use _____ as _____ for _____
(using bacteria waste). - CORRECT ANSWER✔✔- H2 and CO2
substrates
metabolism
In synergism in human gut flora, _____ (_____) can use H2 and CO2 as substrates for
metabolism (using _____). - CORRECT ANSWER✔✔- Methanogens (Archaea)
bacteria waste
In synergism in human gut flora, _____ gain _____ and bacteria have their _____ removed. -
CORRECT ANSWER✔✔- Methanogens
energy
end products
Describe the relationship of synergism in human gut flora. - CORRECT ANSWER✔✔-
Methanogens and bacteria are happier together but can grow well independently
_____ is when one or more partners benefit from the other(s), while other partner(s) are
neither benefit nor are harmed. - CORRECT ANSWER✔✔- Commensalism
Commensalism is when _____ partners benefit from the other(s), while other partner(s)
_______. - CORRECT ANSWER✔✔- one or more
neither benefit nor are harmed
, True or false: Once in the commensalism category, organisms are not moved out. -
CORRECT ANSWER✔✔- False: Organisms are frequently moved out of the commensalism
category once new findings are discovered.
What is an example of commensalism? - CORRECT ANSWER✔✔- H2S is common in
many wetland ecosystems
In commensalism, _____ is toxic to many _____. - CORRECT ANSWER✔✔- H2S
bacteria
In commensalism, _____, which removes it from the local environment. - CORRECT
ANSWER✔✔- Beggiatoa oxidizes H2S
In commensalism, Beggiatoa oxidizes H2S, which _________ the local environment. -
CORRECT ANSWER✔✔- removes it from
True or false: Beggiatoa is known to be affected by microbial neighbors. - CORRECT
ANSWER✔✔- False: Beggiatoa is not known to be affected by microbial neighbors.
_______ is when one or more partners benefit by harming the other(s). - CORRECT
ANSWER✔✔- Amensalism
With amensalism, relationship is ______. - CORRECT ANSWER✔✔- nonspecific
What does it mean that the relationship in amensalism is nonspecific? - CORRECT
ANSWER✔✔- This means the organism(s) being harmed are not usually a specific target of
the other. Rather one or more partners release broad acting toxins or antibiotics.
When stating that the relationship in amensalism is nonspecific, this means that one or more
partners release ________ or ________. - CORRECT ANSWER✔✔- broad acting toxins
antibiotics
What is an example of amensalism? - CORRECT ANSWER✔✔- Soil - Streptomyces
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