ATTENTION:
Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.
Good luck!
ESM231
1 / 50
Acute toxicity generally very low in
2 / 50
Which of these statements is not true of doseresponse relationship ?
3 / 50
What does NOEL stand for?
4 / 50
Inhaled benzene is readily absorbed by the blood from which it is taken up by
5 / 50
Which of these is not true of DDT?
6 / 50
The inhalation of air containing benzene can lead to the following progressive effects:
7 / 50
The historical development of toxicology began with _dwellers
8 / 50
Ludwig Rehn reported elevated incidences of bladder cancer in dye workers exposed to chemicals extracted from
9 / 50
_________ refers to a single exposure of duration measure in second minutes or hours
10 / 50
refers to a site of action other than the point of contact and presupposes that absorption has taken place.
11 / 50
The rate and extent of absorption of hydrophobic chemicals depends on all but one of these
12 / 50
A mutated cells does not necessarily form a
13 / 50
__is the unrestrained, malignant proliferation of somatic cell
14 / 50
One of these definitions is known as "the traditional definition of toxicology"
15 / 50
Depression of the system will lower resistance to infectious disease and facilitate the development of
16 / 50
Which of these is not a rodenticides?
17 / 50
The micro-organisms in the sediments at the bottom bio-transformed the organic mercury ions methyl and ___________ mercury
18 / 50
are the suspended liquid droplets generated by condensation from the gaseous to the liquid state.
19 / 50
is a widely used colourless gas that acts as an anesthetic to animals and is toxic to plants
20 / 50
Which of these events did not occur in the 19th Century
21 / 50
Which of these is NOT a symptom associated with back sore syndrome
22 / 50
is a metalloid which forms a number of toxic compounds
23 / 50
The rate of extent of absorbtion of hydrophobic chemicals depends of these factors except
24 / 50
Absorption through the skin is promoted by all these except
25 / 50
Which of these statements is not true of the enzymes Cytochrome PN450
26 / 50
is term will be used in contrast to acute exposure and it is of long duration
27 / 50
_______ = Concentration x Exposure
28 / 50
“All things are poison and nothing is without poison; only the dose makes a thing a poison “ is a statement credited to:
29 / 50
Which of these is NOT true of Paraquat
30 / 50
Pesticides are chemicals that are use to kill
31 / 50
_____is the unrestrained, malignant proliferation of somatic cell
32 / 50
Chemical species that cause birth defects are known as
33 / 50
Which of these pesticides mimics the action of Acetylcholine
34 / 50
One of these methods of transportation through membranes does not involve specialized transport
35 / 50
The alkylation and arylaton of to cause motations is part of the toxicodynamic phase
36 / 50
36. DDT is a____ pesticide
37 / 50
Alcohols can lead to all but one of the following effects
38 / 50
All but one of these defines toxicology:
39 / 50
___________ is a metalloid which forms a number of toxic compounds
40 / 50
41 / 50
Which of these statements is NOT true of Rotenone ?
42 / 50
Many pesticides in use have different modes of action and levels of
43 / 50
Lead and most of the heavy metals have __________ effect on the (PNS) or the (CNS)
44 / 50
Nitrite can convert haemoglobin to
45 / 50
An exposure which would be relatively harmless unless repeated over a long period of time
46 / 50
Which of these insecticides can be categorised as High toxic potential insecticide?
47 / 50
Exposure to Toluene may lead to one of the following effects:
48 / 50
One of these substances can easily be absorbed by the skin:
49 / 50
__________ has been known to be a poisonous compound for centuries
50 / 50
the outer most corny layer of the skin plays an important role in determining the permeability of this layer
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