Deck 9

Question 1

Conversion of poisons in organism

Answer 1

o Leave the body in unchanged form (strychnine, organic salts)
o Entirely broken down (alcohol = chlore)
o Metabolised in organism (Zn3P2 + HCl = H3P
+ ZnCl2)
o Accumulated in body

Question 2

Nitrated phenols (insecticides) level of accumulation

Answer 2

Extremely accumulation (English 101)

Question 3

Phitotoxicosis intoxication caused by toxic plants

Answer 3

o Alkaloids
o Glycosides

Question 4

Mycotoxins cause

Answer 4

o Hepatotoxic effect
o Haemorrhagic syndrome
o Photodynamic effect
o Different effect

Question 5

Saponins (plants) have

Answer 5

Haemolytic effect

Question 6

Mycotoxin conditions for growth

Answer 6

o Humidity – 90-100%
o Temp – 20-30°C

Question 7

Persistence of poisons

Answer 7

o V. persistent – half-life of 1-2y
o High persistence – 6m-1y
o Moderate persistence – 1-6m
o Low persistence – <1m

Question 8

Determination of hydrogen phosphide

Answer 8

Steam distillation – yellow/orange colour

Question 9

Determination of phenols & cresols

Answer 9

Steam distillation:
o Test with ferric chloride (FeCl3)
* Yellow – negative
* Blue – presence of phenols
* Blue-green – presence of cresols
* Red – presence of acetic acid
o Test with Millon’s reagent – pink/red