BESC 204 - Exam 3 Question and
answers verified to pass
Explain the primary ecological role of fungi - correct answer
✔recyclers/degraders, break down complex organic compounds into simple
molecules, minerals, and energy, elements are then reused by other
organisms
List the structural components of plants that fungi can degrade - correct
answer ✔Cellulose
Lignin
Pectin
Cutin
Nutritional succession - correct answer ✔zygomycetes > simple sugars
ascomycetes > cellulose
basidiomycetes > cellulose and lignin
R-selected - correct answer ✔Species that reproduce early in their life span
and produce large numbers of usually small and short-lived offspring in a
short period.
K-selected - correct answer ✔organisms that reproduce later in life, produce
fewer offspring, and devote significant time and energy to the nurturing of their
offspring.
Spore dispersal mechanisms utilized by fungi - correct answer ✔Wind
Water
,Vector
Self-propelled
Spore dispersal mechanism of Pilobolus sp. - correct answer ✔-Aerial
growth directed towards a light source
-black spore mass at head of sporangium is ejected 3 meters after rupture of
subsporangial vesicle
-Parasitic nematode larvae crawl up the sporangium and are launched with
the spores
Spore discharge utilized by Basidiomycetes. - correct answer ✔-thin layer of
water coats the spore
-droplet of water begins to swell at the base of the conidium due to excretion
of sugar molecules
-once swollen, droplet grows large enough to contact the spore
-droplet rapidly redistributes, flowing into the thin coat of water
-redistribution shifts the center of gravity causing it to catapult away
Buller's Drop - correct answer ✔The droplet of water that accumulates at the
tip of the basidiospore
fermentation reaction - correct answer ✔glucose----> 1- ATP
----> VFA's + CO2 + CH4
Why can't a beverage be produced from fermentation alone? - correct answer
✔To get anything above 18%, the beverage must be distilled
Ingredients found in true beer - correct answer ✔Yeast
, Hops
Malt
Water
Difference between an ale and a lager - correct answer ✔Ale - complex
flavor; brewed at a warmer temperature (55); quicker
Lager - cleaner taste; brewed at a cooler temperature (45); takes more time
Saccharification - correct answer ✔Application of heat to a starch to trigger
the enzymatic processes of converting the starch to fermentable sugar.
Differences between wine making and beer making - correct answer ✔1)
Ingredients for beer are sterilized; those for wine are not
2) Different species or strains of yeast used
3) Sugar for beer comes from malt and must be converted; that for wine
comes from grape juice
4)Additives - hops added to beer; none to wine
5) Water added to beer; none to wine
Effect of prohibition on US brewing industry - correct answer ✔Caused a
sharp decline
Pasteur's role in zymurgy - correct answer ✔-Discovered that yeast was
responsible for the fermentation process
-Showed that hops acted to inhibit bacterial growth
-Discovered bacteria in fermenting beer > Pasteurization
answers verified to pass
Explain the primary ecological role of fungi - correct answer
✔recyclers/degraders, break down complex organic compounds into simple
molecules, minerals, and energy, elements are then reused by other
organisms
List the structural components of plants that fungi can degrade - correct
answer ✔Cellulose
Lignin
Pectin
Cutin
Nutritional succession - correct answer ✔zygomycetes > simple sugars
ascomycetes > cellulose
basidiomycetes > cellulose and lignin
R-selected - correct answer ✔Species that reproduce early in their life span
and produce large numbers of usually small and short-lived offspring in a
short period.
K-selected - correct answer ✔organisms that reproduce later in life, produce
fewer offspring, and devote significant time and energy to the nurturing of their
offspring.
Spore dispersal mechanisms utilized by fungi - correct answer ✔Wind
Water
,Vector
Self-propelled
Spore dispersal mechanism of Pilobolus sp. - correct answer ✔-Aerial
growth directed towards a light source
-black spore mass at head of sporangium is ejected 3 meters after rupture of
subsporangial vesicle
-Parasitic nematode larvae crawl up the sporangium and are launched with
the spores
Spore discharge utilized by Basidiomycetes. - correct answer ✔-thin layer of
water coats the spore
-droplet of water begins to swell at the base of the conidium due to excretion
of sugar molecules
-once swollen, droplet grows large enough to contact the spore
-droplet rapidly redistributes, flowing into the thin coat of water
-redistribution shifts the center of gravity causing it to catapult away
Buller's Drop - correct answer ✔The droplet of water that accumulates at the
tip of the basidiospore
fermentation reaction - correct answer ✔glucose----> 1- ATP
----> VFA's + CO2 + CH4
Why can't a beverage be produced from fermentation alone? - correct answer
✔To get anything above 18%, the beverage must be distilled
Ingredients found in true beer - correct answer ✔Yeast
, Hops
Malt
Water
Difference between an ale and a lager - correct answer ✔Ale - complex
flavor; brewed at a warmer temperature (55); quicker
Lager - cleaner taste; brewed at a cooler temperature (45); takes more time
Saccharification - correct answer ✔Application of heat to a starch to trigger
the enzymatic processes of converting the starch to fermentable sugar.
Differences between wine making and beer making - correct answer ✔1)
Ingredients for beer are sterilized; those for wine are not
2) Different species or strains of yeast used
3) Sugar for beer comes from malt and must be converted; that for wine
comes from grape juice
4)Additives - hops added to beer; none to wine
5) Water added to beer; none to wine
Effect of prohibition on US brewing industry - correct answer ✔Caused a
sharp decline
Pasteur's role in zymurgy - correct answer ✔-Discovered that yeast was
responsible for the fermentation process
-Showed that hops acted to inhibit bacterial growth
-Discovered bacteria in fermenting beer > Pasteurization
