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Contemporary Issues In Biology
Exam 3 Sawey, TCU 2026 | Actual
Well Revised Exam And Perfectly
Answered Questions
Where are some places that e. coli has been found at? - correct-answer --
swimming pool
-cabbage patch
-bad cheese
-dirty toys
-Salad
Symptoms of e. coli infections - correct-answer --bloody diarrhea
-cramps
-kidney disease
What makes toxic e. coli so bad? - correct-answer -It has extra genes that allow it
to stick to the walls of the intestine and produce a potent toxin. It then injures the
,2
cells of the intestinal wall, leading to bleeding. The toxin then travels in the
bloodstream to the kidneys, leading to kidney failure
Why is kidney failure life threatening? - correct-answer -because kidneys are
responsible for removal of nitrogenous waste (urea) and water balance.
How many cases of e. coli reported and how many deaths? - correct-answer -
73,000 infections each year
61 deaths
True or false its legal to put animal manure on crops. - correct-answer -True but
scientists say this practice should stop b/c the manure may have e. coli
How can you avoid e. coli? - correct-answer --avoid unpasteurized and raw meat
-wash your hands
-avoid swimming in pools with kids who have diarrhea/diapers
True or false viruses have ribosomes and rely on host cells for replication. -
correct-answer -FALSE. they cant make protein; have directions but aren't able to
make it that's why they need a host cell
, 3
process of a viral infection - correct-answer -1) Insert virus DNA into host cell
2) Direct host cell to make copies of virus to spread
3) Rupture host cell and releases virus
4) Some virus's may stay hidden from immune system and remain in body
Whats an example of a virus that stay in the body? - correct-answer -Shingles
Shingles - correct-answer --caused by the chickenpox virus
-after having chickenpox, some viruses lie dormant in nerve cells near spinal cord
-years later it can be reactivated and travel along nerve fibers to skin and while it
moves it causes pain
-eventually causes a rash and blisters
Why do we keep getting common cold? - correct-answer --about 200 viruses that
cause the common cold
-Each one has its own protein coat
-cold viruses can mutate and change their health-related effects
Contemporary Issues In Biology
Exam 3 Sawey, TCU 2026 | Actual
Well Revised Exam And Perfectly
Answered Questions
Where are some places that e. coli has been found at? - correct-answer --
swimming pool
-cabbage patch
-bad cheese
-dirty toys
-Salad
Symptoms of e. coli infections - correct-answer --bloody diarrhea
-cramps
-kidney disease
What makes toxic e. coli so bad? - correct-answer -It has extra genes that allow it
to stick to the walls of the intestine and produce a potent toxin. It then injures the
,2
cells of the intestinal wall, leading to bleeding. The toxin then travels in the
bloodstream to the kidneys, leading to kidney failure
Why is kidney failure life threatening? - correct-answer -because kidneys are
responsible for removal of nitrogenous waste (urea) and water balance.
How many cases of e. coli reported and how many deaths? - correct-answer -
73,000 infections each year
61 deaths
True or false its legal to put animal manure on crops. - correct-answer -True but
scientists say this practice should stop b/c the manure may have e. coli
How can you avoid e. coli? - correct-answer --avoid unpasteurized and raw meat
-wash your hands
-avoid swimming in pools with kids who have diarrhea/diapers
True or false viruses have ribosomes and rely on host cells for replication. -
correct-answer -FALSE. they cant make protein; have directions but aren't able to
make it that's why they need a host cell
, 3
process of a viral infection - correct-answer -1) Insert virus DNA into host cell
2) Direct host cell to make copies of virus to spread
3) Rupture host cell and releases virus
4) Some virus's may stay hidden from immune system and remain in body
Whats an example of a virus that stay in the body? - correct-answer -Shingles
Shingles - correct-answer --caused by the chickenpox virus
-after having chickenpox, some viruses lie dormant in nerve cells near spinal cord
-years later it can be reactivated and travel along nerve fibers to skin and while it
moves it causes pain
-eventually causes a rash and blisters
Why do we keep getting common cold? - correct-answer --about 200 viruses that
cause the common cold
-Each one has its own protein coat
-cold viruses can mutate and change their health-related effects
