BIO 216 STUDY GUIDE MIDTERM/FINAL | PRACTICE QUESTIONS & ANSWERS |
COMPREHENSIVE EXAM REVIEW 2026/2027
A prion is an infectious agent consisting of
a.) a membrane bound nucleus
b.) a protein capsule encasing RNA
c.) a protein
d.) DNA in a carbohydrate case - correct answer ✔✔c.) a protein
prions are known to cause which of these diseases?
a.) scrapie
b.)Creutzfeldt-Jakob disease (CJD)
c.) bovine spongiform encephalopathy (BSE)
d.) all of the above - correct answer ✔✔d.) all of the above
How long can prions incubate before showing symptoms?
a.) several years
b.) 3-5 months
c.) 2-3 days
d.) less than 24 hours - correct answer ✔✔a.) several years
currently, how does the cattle industry diagnose BSE infection?
a.) scanning the cows brain for dead regions
b.) BSE is diagnose only after an animal is dead
c.) analyzing blood samples for nerve tissue wastes
, d.) sampling urine for metabolic by-products of prion infecton - correct answer ✔✔b.) BSE is a
diagnose only after the animal is dead
how do prions kill those infected?
a.) multiplying to numbers that eventually rupture the infected brain cells
b.) deactivating components of the immune system
c.) destroying important neurotransmitters in the brain
d.) causing cells to reproduce rapidly, as in cancer - correct answer ✔✔a.) multiplying to
numbers that eventually rupture the infected brain cells
Spongiform encephalopathy can result_____
a.) from a gene mutation
b.) from consuming contaminated food
c.) spontaneously for no apparent reason
d.) all of the above - correct answer ✔✔d.) all of the above
The mad cow outbreak that ravaged the British beef industry in the mid- 1980's has been
attributed to______
a.) infected vitamin samples
b.) cannibalistic feeding of cows
c.) contaminated milking machines
d.) straw and hay harboring prions from wild animals - correct answer ✔✔b.) cannibalistic
feeding of cows
The prion protein PrPsc forms clumps that are difficult to dissolve and resistant to______
a.) heat
b.) radiation
COMPREHENSIVE EXAM REVIEW 2026/2027
A prion is an infectious agent consisting of
a.) a membrane bound nucleus
b.) a protein capsule encasing RNA
c.) a protein
d.) DNA in a carbohydrate case - correct answer ✔✔c.) a protein
prions are known to cause which of these diseases?
a.) scrapie
b.)Creutzfeldt-Jakob disease (CJD)
c.) bovine spongiform encephalopathy (BSE)
d.) all of the above - correct answer ✔✔d.) all of the above
How long can prions incubate before showing symptoms?
a.) several years
b.) 3-5 months
c.) 2-3 days
d.) less than 24 hours - correct answer ✔✔a.) several years
currently, how does the cattle industry diagnose BSE infection?
a.) scanning the cows brain for dead regions
b.) BSE is diagnose only after an animal is dead
c.) analyzing blood samples for nerve tissue wastes
, d.) sampling urine for metabolic by-products of prion infecton - correct answer ✔✔b.) BSE is a
diagnose only after the animal is dead
how do prions kill those infected?
a.) multiplying to numbers that eventually rupture the infected brain cells
b.) deactivating components of the immune system
c.) destroying important neurotransmitters in the brain
d.) causing cells to reproduce rapidly, as in cancer - correct answer ✔✔a.) multiplying to
numbers that eventually rupture the infected brain cells
Spongiform encephalopathy can result_____
a.) from a gene mutation
b.) from consuming contaminated food
c.) spontaneously for no apparent reason
d.) all of the above - correct answer ✔✔d.) all of the above
The mad cow outbreak that ravaged the British beef industry in the mid- 1980's has been
attributed to______
a.) infected vitamin samples
b.) cannibalistic feeding of cows
c.) contaminated milking machines
d.) straw and hay harboring prions from wild animals - correct answer ✔✔b.) cannibalistic
feeding of cows
The prion protein PrPsc forms clumps that are difficult to dissolve and resistant to______
a.) heat
b.) radiation
