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ASU MIC 205 PENTON EXAM 2 NEWEST 2025/2026 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED||
What type of media includes nutrient agar and dextrose agar
plates that are inoculated that inhibit bacterial growth through the
slightly acidic pH of the dextrose selecting fungi? - ANSWER-
selective media
What type of media is a blood agar plate, in which it shows the
digestion of red blood cells by bacteria? - ANSWER-differential
media
In what phase of bacterial growth are the microbes simply
surviving while the enzymes find energy and ways to use it? -
ANSWER-lag phase
In what phase of bacterial growth is their high enzymatic activity?
Time spent here is based on the environment, penicillin/antibiotics
will inhibit growth here, and it is called exponential growth. -
ANSWER-log phase
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In what phase of bacterial growth is cellular growth equal to
cellular death? - ANSWER-stationary phase
In what phase of bacterial growth does the population decline? -
ANSWER-death phase
Microbes can be classified on their ____ or ____ ____. -
ANSWER-nutritional or physical requirements
Bacterial growth is .....? - ANSWER-exponential
What type of organisms acquire their energy from sunlight via
photosynthesis? - ANSWER-phototrophs
What type of organisms acquire their energy from organic or
inorganic molecules? - ANSWER-chemotrophs
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What type of organisms are 'self feeders' ie. they make their own
food and fix CO2 through Calvin-Benson cycle? - ANSWER-
autotrophs
What type of organisms are 'different feeders', in which they get
their carbon from other organisms, like glucose, proteins, and
fats? - ANSWER-heterotrophs
What type of organism is a human? - ANSWER-
Chemoheterotrophs
What type of organism is a plant? - ANSWER-Photoautotrophs
Gaseous oxygen, or oxygen covalently bonded in compounds can
be _____. - ANSWER-poisonous
What type of organism uses oxygen as their final electron
acceptor in aerobic respiration and HAS the ability to detoxify
oxygen? - ANSWER-aerobes
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What type of organism uses fermentation or other molecules as
their final electron acceptor in anaerobic metabolism and has NO
ability to detoxify oxygen so it leads to cellular death? - ANSWER-
anaerobes
What type of organism typically does not use oxygen but can go
through fermentation, aerobic, and anaerobic respiration, and has
SOME enzymes to detoxify oxygen? - ANSWER-aerotolerant
anaerobes
What type of organisms survive by fermentation, anaerobic,
aerobic respiration and CAN detoxify oxygen? - ANSWER-
faculative anaerobes
What type of organisms are aerobes that require oxygen levels
from 2-10% and have LIMITED ability to detoxify forms of
oxygen? - ANSWER-Microaerophiles
Toxic forms of oxygen are called ____ ____ because they initiate
chains of oxidation reactions that cause irreparable damage.
ASU MIC 205 PENTON EXAM 2 NEWEST 2025/2026 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED||
What type of media includes nutrient agar and dextrose agar
plates that are inoculated that inhibit bacterial growth through the
slightly acidic pH of the dextrose selecting fungi? - ANSWER-
selective media
What type of media is a blood agar plate, in which it shows the
digestion of red blood cells by bacteria? - ANSWER-differential
media
In what phase of bacterial growth are the microbes simply
surviving while the enzymes find energy and ways to use it? -
ANSWER-lag phase
In what phase of bacterial growth is their high enzymatic activity?
Time spent here is based on the environment, penicillin/antibiotics
will inhibit growth here, and it is called exponential growth. -
ANSWER-log phase
,2|Page
In what phase of bacterial growth is cellular growth equal to
cellular death? - ANSWER-stationary phase
In what phase of bacterial growth does the population decline? -
ANSWER-death phase
Microbes can be classified on their ____ or ____ ____. -
ANSWER-nutritional or physical requirements
Bacterial growth is .....? - ANSWER-exponential
What type of organisms acquire their energy from sunlight via
photosynthesis? - ANSWER-phototrophs
What type of organisms acquire their energy from organic or
inorganic molecules? - ANSWER-chemotrophs
,3|Page
What type of organisms are 'self feeders' ie. they make their own
food and fix CO2 through Calvin-Benson cycle? - ANSWER-
autotrophs
What type of organisms are 'different feeders', in which they get
their carbon from other organisms, like glucose, proteins, and
fats? - ANSWER-heterotrophs
What type of organism is a human? - ANSWER-
Chemoheterotrophs
What type of organism is a plant? - ANSWER-Photoautotrophs
Gaseous oxygen, or oxygen covalently bonded in compounds can
be _____. - ANSWER-poisonous
What type of organism uses oxygen as their final electron
acceptor in aerobic respiration and HAS the ability to detoxify
oxygen? - ANSWER-aerobes
, 4|Page
What type of organism uses fermentation or other molecules as
their final electron acceptor in anaerobic metabolism and has NO
ability to detoxify oxygen so it leads to cellular death? - ANSWER-
anaerobes
What type of organism typically does not use oxygen but can go
through fermentation, aerobic, and anaerobic respiration, and has
SOME enzymes to detoxify oxygen? - ANSWER-aerotolerant
anaerobes
What type of organisms survive by fermentation, anaerobic,
aerobic respiration and CAN detoxify oxygen? - ANSWER-
faculative anaerobes
What type of organisms are aerobes that require oxygen levels
from 2-10% and have LIMITED ability to detoxify forms of
oxygen? - ANSWER-Microaerophiles
Toxic forms of oxygen are called ____ ____ because they initiate
chains of oxidation reactions that cause irreparable damage.
