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