M.Sc. (Semester IV) (CBCS) Examination Mar/Apr-2018
Environmental Science
ENVIRONMENTAL TOXICOLOGY AND SAFETY
Time: 2½ Hours
Max Marks: 70
Instructions: Attempt any five questions. All Questions carry equal marks. Question no.1 is compulsory. Attempt any two questions from Q.No.2, 3 and 4. Attempt any two questions from Q.No.5, 6 and 7. Draw neat and labeled diagram wherever necessary.
Q.1
Solve correct answer among the following:-
14
What is toxicology? (Indicate the one best answer).
The field that studies the adverse effects on humans and animals.
The field that studies the adverse effects of chemicals on living organisms.
The field that studies the adverse effects of chemicals and micro organisms.
The field that studies the risk-benefit balance of chemicals for living organisms.
is widely regarded as "the Father of Toxicology".
EF Knipling
Zeidler
Paracelsus
Goldsmith and Frank
Dermal dose is given through the
Mouth
Inhalation route
Skin
None of these
Carrier of Dengue disease is
Aedes Mosquito
Housefly
Culex Mosquito
Anopheles Mosquito
Which is called powerhouse of the cell?
Lysosome
Golgi Bodies
Ribosomes
Mitochondria
Acute lethal effects can be classified into parts;
3
5
2
4
The effect of cigarette smoking and radon in combination on lungs is:
Its reaction with other organic moiety
Chemical species present in atmosphere
Its absorption by biota
None of the above
When an ant bites a person, which irritating chemical it injects into his (person) body?
Acetic acid
Tartaric acid
Citric acid
Formic acid
Page 2 of 2
SLR-UI-377
DDT is considered as
Persistent pollutant
Antibiotic
Biodegradable pollutant
All of these
10) Cd, Pb and Hg are nephrotoxic metals as they can harm of humans.
Lungs
Liver
Kidney
Neurons
11) The biochemical laboratory of human body is:
Stomach
Intestine
Liver
Kidney
12) Asbestos use is banned in many countries, it is known to cause?
Cardiac disease
Urinary disease
Lung cancer
Cataract
13) The disciplines which studies the effect of chemicals on entire ecosystem, is referred as:
Ecotoxicology
Behavioral ecology
Immune toxicology
None of these
14) Tobacco addiction is caused due to:
Cocaine
Nicotine
Caffeine
Histamine
Q.2
What do you mean by toxicology? Discuss the scope and basic divisions of toxicology?
14
Q.3
Discuss different routes of toxicants and give in detail the toxic responses of Gastrointestinal system?
14
.
Q.4
Discuss general principles and need for safety? Write in brief occupational injuries and industrial accidents.
14
Q.5
Write a short note on the following
14
Evaluation of toxicity
Spermatogenesis
Q.6
Write In Brief on the following:
14
Detoxification of toxicants in resistant biota
Environmental stress
Q.7
Write an account on the following:-
14
Safety standards and codes
Personal protective equipments