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Question 1

The mechanism of action of cyanide is?

Answer 1

The inhibition of the enzyme cytochrom oxidase

Question 2

The half-life of very persistent chemicals in the environment is?

Answer 2

1-2 years

Question 3

Some chemicals are metabolized to more toxic substances, this process is called?

Answer 3

Lethal synthesis

Question 4

Antagonism is?

Answer 4

An attenuation or complete elimination of the effect of one poison by another poison

Question 5

BAL (dimercaprol) is an useful antidote for poisoning by?

Answer 5

Heavy metals

Question 6

Organophosphate insecticides are metabolized to more toxic metabolites, it is called?

Answer 6

Lethal synthesis

Question 7

Alphanaphthylthiourea (ANTU) is used as?

Answer 7

Rodenticide

Question 8

Ergotism is a disease of farm animals that result form continued ingestion of sclerotia of the parasitic fungus?

Answer 8

Claviceps pupurea

Question 9

Blood that contains large percentage of methemoglobin has?

Answer 9

A chocolate-brown colour

Question 10

How do we determine Zn₃P₂?

Answer 10

Filter paper with silver nitrate turns black and still persist when soaked in HCL

Question 11

What is the purpose of the acute oral toxicity test?

Answer 11

To find LD₅₀of a substance