BIOL 2051 EXAM 3 (Brininstool) Final
Test Questions And 100% Correct
Answers.
Distinguish between macronutrients and micronutrients. - Answer macro-elements needed
in large amounts
micro-elements needed in small amounts
List all 10 macronutrients - Answer carbon
hydrogen
oxygen
nitrogen
potassium
calcium
magnesium
phosphorous
sulfur
sodium
Give some examples of micronutrients - Answer boron, iron, and cobalt
How do growth factors differ from macronutrients and micronutrients? - Answer growth
factors are organic micronutrients that mainly includes vitamins
Name the 5 groups describing an organism's relationship to oxygen. - Answer obligate
aerobes
facultative aerobes
microaerophiles
obligate anaerobes
aerotolerant anaerobes
What type of broth can be used to determine an organism's oxygen requirement? What does
this broth contain that makes it possible to determine an organism's oxygen requirement? -
Answer thioglycolate broth; oxic and anoxic zones
Where would an obligate aerobe grow in a thioglycolate tube? - Answer oxic zone
, Where would an obligate anaerobe grow in a thioglycolate tube? - Answer anoxic zone
Where would an facultative aerobe grow in a thioglycolate tube? - Answer both zones, but
more in oxic
Where would a microaerophile grow in a thioglycolate tube? - Answer top of broth
Where would an aerotolerant anaerobe grow in a thioglycolate tube? - Answer anywhere in
broth; they're insensitive to oxygen
What accommodations need to be made to grow an aerobe in the lab? - Answer -oxic
-exposure to air
-vigorous shaking
-bubble in sterile air
What accommodations need to be made to grow an anaerobe in the lab? - Answer -anoxic
jar
-sealed tube
-anoxic glove boxes
-reducing agent
During what process are toxic oxygen molecules generated? - Answer respiration
How does an organism protect themselves from toxic oxygen molecules? - Answer they use
enzymes to neutralize toxic oxygen molecules
What enzyme combinations would detoxify superoxide (O2-)? In what organisms might those
combinations be found? - Answer superoxide dismutase and catalase; obligate aerobes and
facultative aerobes
Where can an organism get nitrogen? - Answer protein in food
Name a molecule that requires phosphorus. Where can a cell get phosphorus? - Answer
phospholipids; phosphate minerals
Test Questions And 100% Correct
Answers.
Distinguish between macronutrients and micronutrients. - Answer macro-elements needed
in large amounts
micro-elements needed in small amounts
List all 10 macronutrients - Answer carbon
hydrogen
oxygen
nitrogen
potassium
calcium
magnesium
phosphorous
sulfur
sodium
Give some examples of micronutrients - Answer boron, iron, and cobalt
How do growth factors differ from macronutrients and micronutrients? - Answer growth
factors are organic micronutrients that mainly includes vitamins
Name the 5 groups describing an organism's relationship to oxygen. - Answer obligate
aerobes
facultative aerobes
microaerophiles
obligate anaerobes
aerotolerant anaerobes
What type of broth can be used to determine an organism's oxygen requirement? What does
this broth contain that makes it possible to determine an organism's oxygen requirement? -
Answer thioglycolate broth; oxic and anoxic zones
Where would an obligate aerobe grow in a thioglycolate tube? - Answer oxic zone
, Where would an obligate anaerobe grow in a thioglycolate tube? - Answer anoxic zone
Where would an facultative aerobe grow in a thioglycolate tube? - Answer both zones, but
more in oxic
Where would a microaerophile grow in a thioglycolate tube? - Answer top of broth
Where would an aerotolerant anaerobe grow in a thioglycolate tube? - Answer anywhere in
broth; they're insensitive to oxygen
What accommodations need to be made to grow an aerobe in the lab? - Answer -oxic
-exposure to air
-vigorous shaking
-bubble in sterile air
What accommodations need to be made to grow an anaerobe in the lab? - Answer -anoxic
jar
-sealed tube
-anoxic glove boxes
-reducing agent
During what process are toxic oxygen molecules generated? - Answer respiration
How does an organism protect themselves from toxic oxygen molecules? - Answer they use
enzymes to neutralize toxic oxygen molecules
What enzyme combinations would detoxify superoxide (O2-)? In what organisms might those
combinations be found? - Answer superoxide dismutase and catalase; obligate aerobes and
facultative aerobes
Where can an organism get nitrogen? - Answer protein in food
Name a molecule that requires phosphorus. Where can a cell get phosphorus? - Answer
phospholipids; phosphate minerals
