Quiz
Toxicology and Dose Response: LD50, ED50 and Toxicants
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Questions in this quiz (22)
1A male cheetah is showing signs of feminzation, which is concerning the owner. This male cheetah has most likely been affected by what?
- AEndocrine Disruptor
- BNot enough info
- CTeratogen
- DMutagen
2________ is the study of Poisonous substances
- AToxicology
- BToxicant
- CEnvironmental toxicology
3Overall, what do endocrine disruptors affect in humans?
- ANervous System, Hormones, and brain system
- BReproductive system
- CLittle is known about it
4Toxicants are distrubuted throughout the enviornment through all the ways except...
- AThrough sex
- BThrough Air
- CThrough Water
- DBy staying in the land
- EBy accumaltating through the food chain
5All of the following are examples of Toxicants except...
- ACancer
- BCarcinogens
- CMutagens
- DEndocrine Disruptors
- ETeratogens
6________ are chemicals that harm unborn babies; specifically by harming the EMBRYOS in the womb.
- ATeratogens
- BEndocrine Disruptors
- CMutagens.
7Endocrine Disruptors INTERFERE with our hormones; which causes our growth, sexual maturatity, and brain function to be harmed.
- ATrue
- BFalse
8This is a test made to screen suspected toxins.
- AAmes Test
- BCase Study
- CToxicology Test
9Process used for observing and analyzing INDIVIDUAL patients that are affected by poision.
- ACase Study
- BAmes Test
- CEpidemiological Studies
10 Studies involving comparing a group of people that has been affected to a hazard to a group that HAS NOT been affected by that hazard.
- AEpidemiological Studies
- BCase Study
- CAmes Test
11Toxicoligists give animals larger doses of a toxic substance than they humans would recieve from nature because...
- AAnimals are less responsive to pain
- Bto prevent biased feedback.
- CTo ensure that the response is great enough to measure
- DTo ensure that the response is great enough to measure, and so the differences between a low dose and a high dose are clearly seen.
12LD50 is the amount of a toxicant needed to change 50% of an organisms population in some way.
- ATrue
- BFalse
13LD50 is the amount of a toxicant needed to kill 50% of an organisms population
- ATrue
- BFalse
14ED50 is the amount of toxicant needed to produce non-lethal affects on 50% of an organisms population. Such as the amount of a substance needed to cause mices hair to fall out.
- ATrue
- BFalse
15With a______ dose, there is no response until a certain threshold has been reached. At this point, there is a sharp change in the effect.
- AThreshold
- BED50
- CLD50
- DNone of the above
16 Some curves are ______ or ________ shaped, indicating that low doses can be very dangerous.
- AU- or J-shaped
- BS shaped
- CV shaped
17High exposure of a hazard over a short period of time
- AAcute Exposure
- BChronic Exposure
18Low exposure of a hazard for a long period of time
- AChronic Exposure
- BAcute Exposure
19[blank_start]This type of[blank_end] exposure happens after many years of smoking cigarettes or drinking alcohol
- AChronic
20An example of this would be food poisoning - you get very sick very quickly but from one single event
- AAcute Exposure
- BDose-response
- CThreshold
21When two chemicals are mixed together, they result in a more powerful combination than if they were both seperatelly isolated, this demonstrates what?
- ASynergistic effects
- BAntagonists
- CMutagens
22alcohol and acetaminophen (downers) are a more dangerous combination for your body, as opposed to Alcohol or Downers being consumed individually, this example best supports______
- ASynergistic Effects
- BThreshold
- CDose-response curve
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- Description
- AP Environmenal Science Quiz on Untitled, created by Max Feldman on 29/01/2017.
- Author
- Max Feldman
- Language
- English
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