M.Sc. (Semester III) (CBCS) Examination Mar/Apr-2018
Agrochemicals And Pest Management
PESTICIDE RESIDUES AND TOXICOLOGY
Time: 2½ Hours
Max. Marks: 70
Instructions: All Questions are compulsory. All Questions carry equal marks. Attempt any two questions from Section-II. Attempt any two questions from Section-III.
Q.1
Choose the correct option given below:-
14
Which of the following pesticide is carbamate type?
Carbaryl
Malathion
DDT
Endosulphon
The conversion of certain chemically stable compounds to highly chemically reactive metabolites is termed as
bioaccumulation
biodegradation
bioactivation
none of these
Silicon inhalation causes in human being.
asbestosis
silicoponia
silicosis
none of these
Conversion of the pesticide molecule to a non toxic compound by microorganisms is called
bioaccumulation
biodegradation
bioactivation
none of these
Teratogenic substances are responsible
pneumonia
anemia
headache
none of these
Organophosphorus pesticides affect system by inhibition of acetyl cholinesterase enzyme.
digestive
circulatory
nervous
all of the above
Azadiractin is pesticide
synthetic
imported
natural
none of these
Sudden and permanent change in genome of an organism is
mutation
expression
genetics
none of these
Lead and Mercurial pesticides are persistence in atmosphere.
moderate
permanent
temporary
none of these
Page 2 of 2
SLR-UA-10
10) Asbestos inhalation causes in human being.
asbestosis
asbestoponia
asbetophobia
none of these
11) In liquid chromatography liquid contains in column as phase.
steady
mobile
detector
none of these
12) HPLC is type of chromatography.
high volume
high pressure
high profile
none of these
13) The conversion of certain chemically stable compounds to highly chemically reactive metabolites is termed as
bioactivation
biodegradation
bioaccumulation
none of these
14) Hepatic necrosis is the disorder related to gland.
salivary
liver
both a and b
none of these
Section II
Q.2
Define pesticides? How they can enter in atmosphere?
07
Write in brief the technique of HPLC for the analysis of pesticide residue in vegetables.
07
Q.3
Write an essay on scope toxicology in agriculture.
07
Comment upon effects of pesticide residue on soil micro-organisms.
07
Q.4
Write the symptoms and treatment of Arsenic and Opium poisons.
07
Explain in brief the biological magnification of pesticides with suitable example.
07
Section III
Q.5
Role of acetyl choline esterase.
05
Write a note on Minamata disease.
05
Explain in brief soil micro flora and fauna.
04
Q.6
Disciplines of toxicology.
05
Explain carcinogens.
05
Application of GC in residue analysis.
04
Q.7
Write a note on Bhopal gas tragedy.
05
Selective pesticides.
05
Cardiac poison.
04