NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A poisonous substance that may cause serious effects on the body.
A
parasite
B
infection
C
toxin
D
microbiology
Explanation: 

Detailed explanation-1: -Botulinum toxin, produced by Clostridium botulinum, is one of the most poisonous substance known. It causes botulism, a severe muscle-paralyzing disease, which affects an average of 200 persons living in the United States each year.

Detailed explanation-2: -’Toxin n. a poison produced by a living organism, especially by a bacterium. In the body toxins act as antigens, and special antibodies (antitoxins) are formed to neutralize their effects.

Detailed explanation-3: -The inorganic chemicals most commonly responsible for poisonings in the United States are cyanide, mercury, arsenic, and lead. While the last three often appear in chemical forms that are quite harmless, it is the soluble salts of the substances that are poisons. Cyanide is a dangerous substance in any form.

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