8 Flashcards
1
Q
How is poison in the organism converted?
A
- Biochemically active substances interact with chemical and enzymes normally present in the body to become more complex, simpler or moderately altered
- These interactions and alterations are generally controlled by various enzymes present but may occasionally be simple chemical reactions
2
Q
What are the antimony mechanism of action?
A
- Antimony compounds are similar to arsenic compounds
- Antiparasitic effect of antimony compounds results from the inhibition of phosphofructokinase
- Enzyme catalysing the dominant reaction og the glycolytic cycle
- Inhibition og this enzyme slows glycolysis, thus disturbing the energy metabolism of the parasites
3
Q
What type of organic mercury compounds are there?
A
R - Hg+
4
Q
Evaporating (fumigate) insecticides?
A
- SO2
- CS2
- PH3
- HCN
- Methylbromide (CH3Br)
- Ethyleneoxide
5
Q
What is Poison divided into?
A
Organic and inorganic
6
Q
How is chronic copper intoxication termed?
A
The hemolytic crisis
-Manifested by paleness and pronounced symptoms of jaundice
-Urine is ususally dark brown (red water)
7
Q
What is alovinsis?
A
8
Q
What is the value of urea in toxic stage and in normal stage?
A
- Normal = 2-7mmol/l
- Dubious = 8-12mmol/l
- Positive = >12mmol/l
9
Q
What are the stages of risk assessment?
A
- Hazard indentification
- Dose response evaluation
- Evaluation of exposure
10
Q
Mode of penetration of insecticides?
A
- Contact = do not penetrate to the plant tissue
- Systemic = they penetrate ny cuticle of plant cells
- Per oral = penetrate into organism by ingestion
- Respiratory = they kill pests after respiration
11
Q
What does lead (Pb) depress?
A