BESC 204 Test 3 Question and answers
correctly solved
Explain the primary ecological role of fungi - correct answer
✔recyclers/degraders
List the structural components of plants that fungi can degrade - correct
answer ✔cellulose
lignin
pectin
cutin
Explain the concept of nutritional succession (what does r-selected and K-
selected mean) - correct answer ✔degrades nutrients, r-selected means that
it grows rapidly, lives long, reproduces a lot, k-selected means that it
reproduces a little, lives short period of time, grows slowly
Detail with examples spore dispersal mechanism utilized by fungi - correct
answer ✔most common spore dispersal mechanism is wind, fruiting body
sometimes project their spores, rainsplash, taste, and odor
Explain the spore dispersal mechanism of Pilobolus sp. - correct answer
✔self propelled,
Black spore mass at head of sporangium is ejected 3 meters after rupture of
subsporangial vesicle
Explain the mechanism of spore discharge utilized by Basidiomycetes. How
does the term "Buller's drop' relate to this? - correct answer ✔wind; buller's
drop is the drop of water that condenses on the edge of the spore
, Describe the fermentation reaction, what is the substrate? What are the
products? How much energy is harvested? - correct answer ✔sugar --> 2
ethanol + 2 CO2, 2 atp
Explain why you can not produce a beverage from fermentation alone, that is
more than around 18% alcohol - correct answer ✔liquor that has >18% will
kill the yeast
Know the four ingredients found in "true beer" - correct answer ✔yeast
malt
hops
water
Explain the difference between an ale and a lager - correct answer ✔the
difference is where yeast ferments
ale-top and lager-bottom
ale - fruity/nuttier lager - cleaner
lagers most common in the US
Explain how the saccharification reaction works (amylase) - correct answer
✔saccharification is turning starches into simple sugars; process of breaking
down amylose, determines taste of beer (amylase breaks down amylose)
Describe how wine making differs from beer making - correct answer ✔sugar
in beer has to be converted from malt and it comes from the fruit in wine
ingredients need to be sterilized for beer and not for wine
diff yeasts used
no water added to wine and beer is 99% water
correctly solved
Explain the primary ecological role of fungi - correct answer
✔recyclers/degraders
List the structural components of plants that fungi can degrade - correct
answer ✔cellulose
lignin
pectin
cutin
Explain the concept of nutritional succession (what does r-selected and K-
selected mean) - correct answer ✔degrades nutrients, r-selected means that
it grows rapidly, lives long, reproduces a lot, k-selected means that it
reproduces a little, lives short period of time, grows slowly
Detail with examples spore dispersal mechanism utilized by fungi - correct
answer ✔most common spore dispersal mechanism is wind, fruiting body
sometimes project their spores, rainsplash, taste, and odor
Explain the spore dispersal mechanism of Pilobolus sp. - correct answer
✔self propelled,
Black spore mass at head of sporangium is ejected 3 meters after rupture of
subsporangial vesicle
Explain the mechanism of spore discharge utilized by Basidiomycetes. How
does the term "Buller's drop' relate to this? - correct answer ✔wind; buller's
drop is the drop of water that condenses on the edge of the spore
, Describe the fermentation reaction, what is the substrate? What are the
products? How much energy is harvested? - correct answer ✔sugar --> 2
ethanol + 2 CO2, 2 atp
Explain why you can not produce a beverage from fermentation alone, that is
more than around 18% alcohol - correct answer ✔liquor that has >18% will
kill the yeast
Know the four ingredients found in "true beer" - correct answer ✔yeast
malt
hops
water
Explain the difference between an ale and a lager - correct answer ✔the
difference is where yeast ferments
ale-top and lager-bottom
ale - fruity/nuttier lager - cleaner
lagers most common in the US
Explain how the saccharification reaction works (amylase) - correct answer
✔saccharification is turning starches into simple sugars; process of breaking
down amylose, determines taste of beer (amylase breaks down amylose)
Describe how wine making differs from beer making - correct answer ✔sugar
in beer has to be converted from malt and it comes from the fruit in wine
ingredients need to be sterilized for beer and not for wine
diff yeasts used
no water added to wine and beer is 99% water
