NURSING ANM AND GNM

NURSING EXAM QUESTIONS

TOXICOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A poison that can harm an organism is a(n)
A
over the counter drug
B
toxin
C
toxicity
D
narcotic
Explanation: 

Detailed explanation-1: -In science, a toxin is often considered a specific type of poison – a poisonous substance produced within living cells or organisms. Some scientists, though, refer to toxins as they would any poison and call those toxins that have a living source ‘biotoxins’ or ‘natural toxins’.

Detailed explanation-2: -A toxin is a naturally occurring organic poison produced by metabolic activities of living cells or organisms. They occur especially as proteins, often conjugated. The term was first used by organic chemist Ludwig Brieger (1849–1919) and is derived from the word “toxic".

Detailed explanation-3: -: a poisonous substance that is a specific product of the metabolic activities of a living organism and is usually very unstable, notably toxic when introduced into the tissues, and typically capable of inducing antibody formation.

Detailed explanation-4: -Anthrax lethal toxin is produced by Bacillus anthracis. Botulinum toxin, produced by Clostridium botulinum, is one of the most poisonous substance known. Pertussis toxin is produced by the Bordetella pertussis bacteria which causes whooping cough. More items

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