NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ is a poison produced by disease-causing organisms
A
antigen
B
pathogen
C
toxin
D
microorganism
Explanation: 

Detailed explanation-1: -In infectious diseases and clinical microbiology, the term “toxin” typically refers to molecules that are produced by microorganisms that may affect cells in the infected host.

Detailed explanation-2: -Toxins are substances created by plants and animals that are poisonous (toxic) to humans. Toxins may also include some medicines that are helpful in small doses, but poisonous in large amounts. Most toxins that cause problems in humans come from germs such as bacteria.

Detailed explanation-3: -Toxins are potent molecules produced by a large variety of bacterial pathogens that target host cells and play key roles in the host–pathogen dialog. They are major virulence factors often sufficient to determine the outcome of the infection.

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