M.Sc. (Semester III) (CBCS) Examination Nov/Dec-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.
Figures to the right indicate full marks.
Q.1 Rewrite the sentences by choosing correct answer from given alternatives: 14
The research institute of toxicology is established in
Mumbai Pune
Delhi Lucknow
A component does not occur in nature but introduced by human activity is
called
Poison Contaminant
Pollutant Corrosion
toxicology is used in detection of cause of mortality.
Environmental Economic
Biochemical Forensic
The deep sleep and coma is produced by in human beings.
Narcotics Spasmodic
Irritants Cardiac poison
affects the balance of Na+ and ions into the cells.
Nicotinoids Organophosphates
Carbamates Rynoids
The chemical which causes the cancer is known as
Carcinogenic Mutagenic
Immunotoxic Corrosive
includes process which moves the pesticides away from the
target site.
Biodegradation Photodegradation
Drift Adsorption
Inhibition of acetyl choline esterase is caused by
DDT Organophosphorus insecticide
Fungicide BHC
poison affects on the nervous system of man.
Corrosive Irritants
Neurotoxins Cardiac
10) The process of tumor formation is known as
Neoplasia Hyperplasia
Metaplasia Anaplasia
11) The Bhopal gas tragedy occurred due to leakage of gas.
Methyl isocyanate Propyl isocyanate
Methyl isocyanide Chorine
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SLR-VA-10
12) Which of the following radiation are used for the generation of mutation?
Gamma rays X-rays
Both a b None of these
13) Pesticides residues in the fruits are analyzed by technique.
HPLC
Spectrophotometry
Atomic absorption Spectrophotometry
All of these
14) Minamata disease was observed in
China Africa
Japan India
Q.2 Answer the following (Any
1. Describe the pesticides
2. What are the mutagens?
3. What is biodegradation?
4. Define toxicology.
5. Write symptoms of Opium.
08
Write notes on (Any
1. Symptoms of Arsenic.
2. Action of toxicant on lipids.
3. Degradation of pesticides in the soil.
06
Q.3 Answer the following (Any
1. Write in brief about food toxicology
2. Explain in brief bioconcentration.
3. Write in brief analysis of pesticide residues from fruits.
08
Answer the following (Any
1. Write in brief about toxic chemicals in the soil and air.
2. Describe model ecosystem studies of bioconcentration.
06
Q.4 Answer the following (Any
1. Describe the nature and pollution of aquatic systems studied by you.
2. Describe the classification of poisons and their treatment.
3. Describe the protocol of Gas Chromatography for fruits.
10
Answer the following (Any
1. Describe the effect of pesticides residue on microorganisms.
2. Explain in detail the history of toxicology.
04
Q.5 Answer the following (Any 14
Describe the mechanism of action of organophosphate and organochlorine
insecticide.
Explain the toxicological testing methods of HPLC for vegetables.
Write an essay on toxicology and its scope.