FOS3042 exam 1 questions and answers
how is aw measured ✔✔partial pressure of water vapor
pressure of water above food/pressure of pure water
monosaccharides ✔✔hexoses, pentoses
hexoses ✔✔glucose, fructose, galactose
pentoses ✔✔ribose, arabinose
disaccharide ✔✔lactose
polysaccharide/oligosaccharide ✔✔starch, fiber
refined glucose is called ✔✔dextrose
fructose is found in ✔✔fruit
galactose is found in ✔✔lactose
,sucrose is also ✔✔table sugar
maltose ✔✔found in beer, cereals, baby formula
fructo-oligosaccharides ✔✔found in fruit and veg, prebiotic
alpha glucose ✔✔starch, orientation of monomers the same, converted to
glycogen in human body
beta glucose ✔✔cellulose, orientation of monomers upside down with
respect to its neighbors, indigestible, Human lacks beta-glucosidase to
utilize beta-glucose
protein uses ✔✔gelatin, enzymatic reactions, browning
explain free radicals ✔✔oxygen free radical attacks fatty acids, forming
more free radicals, causes rancidity of unsat. fat, vitamin e stops
destruction
what can bacteria cause ✔✔infection, poisoning, toxin-mediated infection
causes of foodborne illness ✔✔chemical, physical, biological
, mold ✔✔produce mycotoxins, are visible
parasite ✔✔toxoplasma gondii
what is a prion ✔✔protein material ex. bovine spongiform encephalopathy,
regulated by USDA
chemical contaminants ✔✔pesticides, pharmaceuticals in water, mold
toxins, seafood toxins
afla ✔✔made by mold Aspergillus flavus, peanuts and grains likely affected
botulism causes ✔✔improperly home canned food, Clostridium
botulinum releases botulinum toxin
explain cdc pulsenet ✔✔Participants
perform DNA fingerprinting of food
contaminants to identify specific bacterial strains (55). They upload these
data
to the CDC PulseNet database, where
participants all over the nation can view
outbreaks and determine whether the
same bacterial strain is responsible for
how is aw measured ✔✔partial pressure of water vapor
pressure of water above food/pressure of pure water
monosaccharides ✔✔hexoses, pentoses
hexoses ✔✔glucose, fructose, galactose
pentoses ✔✔ribose, arabinose
disaccharide ✔✔lactose
polysaccharide/oligosaccharide ✔✔starch, fiber
refined glucose is called ✔✔dextrose
fructose is found in ✔✔fruit
galactose is found in ✔✔lactose
,sucrose is also ✔✔table sugar
maltose ✔✔found in beer, cereals, baby formula
fructo-oligosaccharides ✔✔found in fruit and veg, prebiotic
alpha glucose ✔✔starch, orientation of monomers the same, converted to
glycogen in human body
beta glucose ✔✔cellulose, orientation of monomers upside down with
respect to its neighbors, indigestible, Human lacks beta-glucosidase to
utilize beta-glucose
protein uses ✔✔gelatin, enzymatic reactions, browning
explain free radicals ✔✔oxygen free radical attacks fatty acids, forming
more free radicals, causes rancidity of unsat. fat, vitamin e stops
destruction
what can bacteria cause ✔✔infection, poisoning, toxin-mediated infection
causes of foodborne illness ✔✔chemical, physical, biological
, mold ✔✔produce mycotoxins, are visible
parasite ✔✔toxoplasma gondii
what is a prion ✔✔protein material ex. bovine spongiform encephalopathy,
regulated by USDA
chemical contaminants ✔✔pesticides, pharmaceuticals in water, mold
toxins, seafood toxins
afla ✔✔made by mold Aspergillus flavus, peanuts and grains likely affected
botulism causes ✔✔improperly home canned food, Clostridium
botulinum releases botulinum toxin
explain cdc pulsenet ✔✔Participants
perform DNA fingerprinting of food
contaminants to identify specific bacterial strains (55). They upload these
data
to the CDC PulseNet database, where
participants all over the nation can view
outbreaks and determine whether the
same bacterial strain is responsible for
