Master of Science II (Agrochemical and Pest Management)
Examination: Oct Nov 2016 Semester III (New CBCS)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SP
22
Wednesday
16/11/2016
02.30 PM
to
05.00 PM
Pesticide Residues and
Toxicology
C
IX
Instructions: All questions carry equal marks.
All Questions are compulsory.
Solve any two questions from Section II.
Solve any two questions from Section III.
Total Marks:70
SECTION I
Q.1 Choose correct answer from options given below. 14
Fungicides kills the
insects bacteria
fungi all the above
ii) Teratogenic substances are responsible for
foetal abnormalities anemia
headache pneumonia
iii) Organophosphorus pesticides affect system by inhibition of
acetyl cholinesterase enzyme.
digestive circulatory
nervous all the above
iv) Minamata disease was observed in country.
Indonesia China
Africa Japan
Azadiractin is pesticide.
synthetic imported
natural none of these
vi) Sudden and permanent change in genome of an organism is
mutation expression
genetics none of above
vii) Lead and Mercurial pesticides are persistence in atmosphere.
moderate permanent
temporary none of above
viii) Decomposition of pesticides by microbes is the process.
Bio-accumulation Bio-activation
Bio-concentration Bio-degradation
ix) Asbestos inhalation causes in human being.
asbestosis asbestoponia
asbetophobia none of these
In liquid chromatography liquid contains in column as phase.
steady mobile
detector none of these
xi) HPLC is type of chromatography.
high volume high pressure
high profile none of these
xii) Toxicology is the branch of
Entomology Biology
Pharmacology None of these
xiii) The conversion of certain chemically stable compounds to highly
chemically reactive metabolites is term as
bioactivation biodegradation
bioaccumulation none of these
xiv) Hepatic necrosis is the disorder related to gland.
salivary liver
both a and b none of these
SECTION II
Q.2 Give definition and scope of Toxicology. 07
Explain the Gas chromatography technique for the analysis of pesticide
residues in fruits.
07
Q.3 Give in detail mechanism of action of organochlorine pesticides. 07
Explain effects of pesticides on human health. 07
Q.4 State effects of pesticide residue on soil micro-organisms. 07
Explain entry of pesticides in aquatic environment by point and
non-point sources.
07
SECTION III
Q.5 Write a note on Bhopal gas tragedy. 05
Write a note on Minamata disease. 05
Define soil micro-biology and enlist any four microbes that are helpful
for crop growth.
04
Q.6 Comment on the entry of pesticide in water. 05
Explain carcinogens. 05
Discuss the applications of GC in pesticide residue analysis. 05
Q.7 Write brief account of Teratogens. 05
Discuss about selective pesticides. 05
Write the protocol for analysis of pesticide residues by HPLC. 04