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Unformatted text preview: What is
the main killer involved in this poison?
e) Lead carbonate 7. British Anti-Lewisite (BAL) is a useful antidote for arsenic poisoning because:
a) It has the same thiol (S-H) groups as enzymes in our body do.
b) It has less affinity for arsenious acid than enzymes in our body do.
c) It displaces water and attaches itself to enzymes in our body, thus blocking
endogenous enzymatic action.
d) It prevents arsenic from being converted to arsenious acid, thus preventing the
e) It changes the arsenious acid into an antacid.
8. Which of the following is true about cyanide poisoning:
a) The lethal dose for potassium cyanide (KCN) is well above 60 mg.
b) Dropping a vial of liquid hydrogen cyanide (HCN) on the floor likely won’t harm
you, as long as none fell on your skin.
c) It mainly exerts its lethal effect by blocking Cytochrome C, an essential
enzyme in our body.
d) Rasputin wasn’t affected by cyanide because his body had likely gained immunity to
e) Cyanide smells like pine ext...
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- Spring '11