PBH 101 Exam 2 Questions and Answers Latest Update 2025-2026
According to Bill Marler, salmonella is "not a(n) _____ per se, meaning its presence does not
require the USDA to refuse to stamp such meat 'inspected and passed." - Answers adulterant
Which federal agency has the authority to mandate a recall? - Answers FDA Center for Food
Safety and Applied Nutrition
Which food-borne illness agent causes the most hospitalization and deaths in the US? -
Answers Salmonella (non-typhoidal)
Which food-borne illness agent is especially problematic because it can replicate even at
refrigerated temperatures? - Answers Listeria monocytogenes
A media clip in this module highlighted a famous case where peanut butter became
contaminated with _____. - Answers salmonella
Because of budgetary constraints, how often can the FDA inspect food-processing facilities
under its jurisdiction? - Answers Every 10 years
Because they grow in shallow coastal waters, which are likely to be polluted, which shellfish
may carry cholera-related bacteria, hepatitis A virus, and the common Norwalk virus? - Answers
Oysters
All mosquitoes can transmit zika virus. True or false - Answers False
Only female mosquitoes bite. True or false - Answers True
In the context of vector-borne disease, ultra low volume fogging is used for... - Answers adult
mosquito control
Which larval control strategy is a mechanical rather than a biological strategy? - Answers films
and oils
Which of these is an example of a 'source reduction' strategy to prevent dengue fever or zika
virus? - Answers Dumping or draining all sources of standing water
Using Wolbachia bacteria to sterilize female mosquitoes so they can't reproduce is an example
of which vector control strategy? - Answers Source reduction
When a chemical builds up in an organism over time faster than it is excreted or metabolized it
is called - Answers bioaccumulation
If you are exposed to a chemical substance regularly for 14 months it would classified as ____
duration. - Answers Chronic
Which of these is NO LONGER a source of lead exposure to anyone in the U.S.? - Answers
, vehicle emissions
What is the primary source of arsenic that leads to such high levels in American-grown rice? -
Answers Arsenic that is left in the soil from previous use of arsenic-containing pesticides before
they were banned
Route of exposure - Answers How the chemical gets into the human - ingestion, inhalation, or
transdermal contact
Exposure media/exposure point - Answers Contaminated air, water, soil, or biota that people
come in contact with
Source - Answers Where the chemical was before being released into the environment
Impacted media - Answers Air, water, soil, or biota that the chemical is released into
Release mechanism - Answers How the chemical leaves the source, E.G., emissions or spill
What was the actual source of the lead that poisoned the Flint residents? - Answers Pipes
carrying the water through the town were made of lead
BPA - Answers Used in plastic bags, especially food and drink containers. Our endocrine
disruptors that interfere with the bodies, hormones, causing early puberty, and females and
abnormalities in sex organs.
PCBs - Answers Persistent, pollutants, resulting from industrial waste. It is still unsafe for
pregnant women and children to eat fish caught in the Hudson river as a result of this pollutant.
Arsenic - Answers Has been referred to as the 'king of poisons'. Was responsible for the worst
mass poisoning incident in history (in Bangladesh).
Radon - Answers A naturally occurring radioactive gas that increase risk of lung cancer,
especially among smokers.
If a factory, discharges, polluted water into a river, this would be considered points source
pollution. - Answers Point source
When chemicals end up in rivers and lakes, as a result of storm water, runoff from farms,
construction site, and urban roadways, it is called non-source pollution. - Answers Non-point
source
What are the reasons for slow pace of regulating hazardous chemicals? - Answers - The sheer
number of potentially toxic chemicals that exist.
- Testing for toxicity is expensive and time-consuming.
- each chemical has to be regulated separately, which means dealing with controversies and
According to Bill Marler, salmonella is "not a(n) _____ per se, meaning its presence does not
require the USDA to refuse to stamp such meat 'inspected and passed." - Answers adulterant
Which federal agency has the authority to mandate a recall? - Answers FDA Center for Food
Safety and Applied Nutrition
Which food-borne illness agent causes the most hospitalization and deaths in the US? -
Answers Salmonella (non-typhoidal)
Which food-borne illness agent is especially problematic because it can replicate even at
refrigerated temperatures? - Answers Listeria monocytogenes
A media clip in this module highlighted a famous case where peanut butter became
contaminated with _____. - Answers salmonella
Because of budgetary constraints, how often can the FDA inspect food-processing facilities
under its jurisdiction? - Answers Every 10 years
Because they grow in shallow coastal waters, which are likely to be polluted, which shellfish
may carry cholera-related bacteria, hepatitis A virus, and the common Norwalk virus? - Answers
Oysters
All mosquitoes can transmit zika virus. True or false - Answers False
Only female mosquitoes bite. True or false - Answers True
In the context of vector-borne disease, ultra low volume fogging is used for... - Answers adult
mosquito control
Which larval control strategy is a mechanical rather than a biological strategy? - Answers films
and oils
Which of these is an example of a 'source reduction' strategy to prevent dengue fever or zika
virus? - Answers Dumping or draining all sources of standing water
Using Wolbachia bacteria to sterilize female mosquitoes so they can't reproduce is an example
of which vector control strategy? - Answers Source reduction
When a chemical builds up in an organism over time faster than it is excreted or metabolized it
is called - Answers bioaccumulation
If you are exposed to a chemical substance regularly for 14 months it would classified as ____
duration. - Answers Chronic
Which of these is NO LONGER a source of lead exposure to anyone in the U.S.? - Answers
, vehicle emissions
What is the primary source of arsenic that leads to such high levels in American-grown rice? -
Answers Arsenic that is left in the soil from previous use of arsenic-containing pesticides before
they were banned
Route of exposure - Answers How the chemical gets into the human - ingestion, inhalation, or
transdermal contact
Exposure media/exposure point - Answers Contaminated air, water, soil, or biota that people
come in contact with
Source - Answers Where the chemical was before being released into the environment
Impacted media - Answers Air, water, soil, or biota that the chemical is released into
Release mechanism - Answers How the chemical leaves the source, E.G., emissions or spill
What was the actual source of the lead that poisoned the Flint residents? - Answers Pipes
carrying the water through the town were made of lead
BPA - Answers Used in plastic bags, especially food and drink containers. Our endocrine
disruptors that interfere with the bodies, hormones, causing early puberty, and females and
abnormalities in sex organs.
PCBs - Answers Persistent, pollutants, resulting from industrial waste. It is still unsafe for
pregnant women and children to eat fish caught in the Hudson river as a result of this pollutant.
Arsenic - Answers Has been referred to as the 'king of poisons'. Was responsible for the worst
mass poisoning incident in history (in Bangladesh).
Radon - Answers A naturally occurring radioactive gas that increase risk of lung cancer,
especially among smokers.
If a factory, discharges, polluted water into a river, this would be considered points source
pollution. - Answers Point source
When chemicals end up in rivers and lakes, as a result of storm water, runoff from farms,
construction site, and urban roadways, it is called non-source pollution. - Answers Non-point
source
What are the reasons for slow pace of regulating hazardous chemicals? - Answers - The sheer
number of potentially toxic chemicals that exist.
- Testing for toxicity is expensive and time-consuming.
- each chemical has to be regulated separately, which means dealing with controversies and
