besc 204 exam 3 learning objectives Question and answers already passed list 4 examples of a 'black mold' you might find growing in your home - correct answer Cladosporium, Penicillium, Aspergillus, Stachybotrys, Alternaria
Name and describe the species of 'black mold' that is the greatest co...
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besc 204 exam 3 learning objectives
Question and answers already passed
list 4 examples of a 'black mold' you might find growing in your home - correct
answer ✔Cladosporium, Penicillium, Aspergillus, Stachybotrys, Alternaria
Name and describe the species of 'black mold' that is the greatest concern to
homeowners, insurance companies, and lawyers - correct answer
✔Stachybotrys chartarum, first isolated from wallpaper in Prague, conidia are
dark brown to black, elliptical
Describe the Fermentation reaction, what is the substrate? - correct answer
✔Sugars are converted into ethanol and carbon dioxide
reactants : C6H12O6 → 2 C2H5OH + 2 CO2 (+2 ATP's)
Explain why you can not produce a beverage from fermentation alone, that is
more than around 18% alcohol - correct answer ✔Because the alcohol is
harmful to the yeast at higher (>18%) percentages
Know the four ingredients found in 'true beer' - correct answer ✔Yeast
Hops
Malt
water
Explain the difference between an Ale and a Lager - correct answer ✔Ale:
saccharomyces cerevisiae
More complex flavor profile
Lagers: saccharomyces pastorianus
, Explain how the saccharification reaction works (amylase) - correct answer
✔An amylase enzyme catalyzes the hydrolysis of starch into sugars
Describe how wine making differs from beer making - correct answer ✔Wine
is more from fruit juice
Beer is more from grain
Describe the effect that prohibition had on the US brewing industry - correct
answer ✔The brewers all shut down
Home brewing became the only way to obtain alcohol
Explain Pasteur's role in the science of zymurgy - correct answer ✔Related
fermentation to science
Discovered that yeast were responsible for the fermentation process
Pasteurization - process of heating then rapid cooling of food to preserve
flavor yet sterilize it.
Who one the Nobel prize for chemistry in 1907? Explain his contribution to
science? - correct answer ✔eduard Buchner - discovered what fermentation
was on cellular level
Describe how camembert and 'blue cheese' are made. Be specific about the
fungus involved. How are they different? - correct answer ✔Species of
penicillin
Conidia from mycelium in cheese give it the flavor
Camembert (Brie in US) - block of white cheese allowed to be colonized by
penicillium camemberti; only surface growth on cheese
Blue cheese - fungi grows inside the cheese. penicillium roqueforti
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