PH 161 Final Exam 94 Questions with Complete Solutions.
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Course
PH 161
Institution
PH 161
PH161FinalExam94QuestionswithComplete
Solutions.
Bioaccumulation (biomagnification) of heavy metals is a particular hazard associated with
- Correct Answer Mercury
Excessively low intake of copper may be associated with - Correct Answer Dietary
deficiency
For fetuses, infants, and children, t...
PH 161 Final Exam 94 Questions with Complete
Solutions.
Bioaccumulation (biomagnification) of heavy metals is a particular hazard associated with
- Correct Answer Mercury
Excessively low intake of copper may be associated with - Correct Answer Dietary
deficiency
For fetuses, infants, and children, the hazards of heavy metals include - Correct Answer
(ALL OF ABOVE) Impairment of physical and mental development
Damage to internal organs
Brain damage
Some forms of cancer
Lead exposure can arise from - Correct Answer (ALL OF ABOVE) Lead paint used in
homes
Certain types of pottery
Lead dusts brought home from work
Tap water from soldered pipes
Methylation is a process that involves which of the following metals? - Correct Answer
Mercury
Possible methods for exposure to metals include - Correct Answer (ALL OF ABOVE)
Inhalation of dusts
Inhalation of metal fumes
Skin contact with dusts
Ingestion
Arsenic standard was tightened since 2006. This was done to achive what - Correct
Answer To reduce cancers
, What level of metals from essential metals with potential toxicity class are required for
routine nutrition purposes? - Correct Answer Medium
Low levels of exposure for short period of time can result in what? - Correct Answer No
disease
Low levels of exposure for long period of time can result in what? - Correct Answer Not
determined yet, currently under research
Environmental media provide important information regarding what? - Correct Answer
(BOTH) Anticipation of likely contaminant in a particular media based on their high
likeyhood of presence & What route of entry in the body the chemical will take based on
their dominance in a particular media
Ingestion is the fastest route of exposure to a chemical in terms of adsorption of the
chemical in the blood? - Correct Answer False
A chemical can end up in the National priority (NPL) list if the chemical is highly toxic but it's
occurance on the hazardous sites is rare - Correct Answer False
High exposure to aluminum is associated with occurance of what disease? - Correct
Answer Alzheimer's Disease
Which of the following chemicals bioaccumulate? - Correct Answer (ALL OF ABOVE)
Lead
Mercury
Arsenic
Heavy metals are heavy because of what? - Correct Answer (1 and 3) Their specific gravity
exceeds the specific gravity of water by 5 to 6 times & They have high molar mass
(molecular weight)
The type of environmental media (air, water, food, soil) significantly affect the degree of
exposure to heavy metals. - Correct Answer True
Which of the following is a heavy metal used for medical therapy? - Correct Answer
Aluminum
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