BIOL 2051 Exam UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Distinguish between macronutrients and micronutrients. - CORRECT ANSWER macro-
elements needed in large amounts
micro-elements needed in small amounts
List all 10 macronutrients - CORRECT ANSWER carbon
hydrogen
oxygen
nitrogen
potassium
calcium
magnesium
phosphorous
sulfur
sodium
Give some examples of micronutrients - CORRECT ANSWER boron, iron, and cobalt
How do growth factors differ from macronutrients and micronutrients? - CORRECT
ANSWER growth factors are organic micronutrients that mainly includes vitamins
Name the 5 groups describing an organism's relationship to oxygen. - CORRECT
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? - CORRECT
ANSWER thioglycolate broth; oxic and anoxic zones
Where would an obligate aerobe grow in a thioglycolate tube? - CORRECT ANSWER oxic
zone
Where would an obligate anaerobe grow in a thioglycolate tube? - CORRECT
ANSWER anoxic zone
Where would an facultative aerobe grow in a thioglycolate tube? - CORRECT ANSWER both
zones, but more in oxic
Where would a microaerophile grow in a thioglycolate tube? - CORRECT ANSWER top of
broth
Where would an aerotolerant anaerobe grow in a thioglycolate tube? - CORRECT
ANSWER anywhere in broth; they're insensitive to oxygen
What accommodations need to be made to grow an aerobe in the lab? - CORRECT ANSWER -
oxic
-exposure to air
-vigorous shaking
-bubble in sterile air
What accommodations need to be made to grow an anaerobe in the lab? - CORRECT
ANSWER -anoxic jar
-sealed tube
-anoxic glove boxes
-reducing agent
During what process are toxic oxygen molecules generated? - CORRECT ANSWER respiration
QUESTIONS AND CORRECT ANSWERS
Distinguish between macronutrients and micronutrients. - CORRECT ANSWER macro-
elements needed in large amounts
micro-elements needed in small amounts
List all 10 macronutrients - CORRECT ANSWER carbon
hydrogen
oxygen
nitrogen
potassium
calcium
magnesium
phosphorous
sulfur
sodium
Give some examples of micronutrients - CORRECT ANSWER boron, iron, and cobalt
How do growth factors differ from macronutrients and micronutrients? - CORRECT
ANSWER growth factors are organic micronutrients that mainly includes vitamins
Name the 5 groups describing an organism's relationship to oxygen. - CORRECT
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? - CORRECT
ANSWER thioglycolate broth; oxic and anoxic zones
Where would an obligate aerobe grow in a thioglycolate tube? - CORRECT ANSWER oxic
zone
Where would an obligate anaerobe grow in a thioglycolate tube? - CORRECT
ANSWER anoxic zone
Where would an facultative aerobe grow in a thioglycolate tube? - CORRECT ANSWER both
zones, but more in oxic
Where would a microaerophile grow in a thioglycolate tube? - CORRECT ANSWER top of
broth
Where would an aerotolerant anaerobe grow in a thioglycolate tube? - CORRECT
ANSWER anywhere in broth; they're insensitive to oxygen
What accommodations need to be made to grow an aerobe in the lab? - CORRECT ANSWER -
oxic
-exposure to air
-vigorous shaking
-bubble in sterile air
What accommodations need to be made to grow an anaerobe in the lab? - CORRECT
ANSWER -anoxic jar
-sealed tube
-anoxic glove boxes
-reducing agent
During what process are toxic oxygen molecules generated? - CORRECT ANSWER respiration
