Question

which one of the following produces the most potent exotoxin? group of answer choices mycobacterium tuberculosis bordetella pertussis streptococcus pyogenes corynebacterium diphtheriae

Answer 1

Corynebacterium diphtheriae produces the most potent exotoxin that leads to the formation of a pseudomembrane and inhibits protein synthesis in the host, causing cell death.

Step-by-step explanation:

The bacterium that produces the most potent exotoxin among the options provided is Corynebacterium diphtheriae, which is known for causing diphtheria. Diphtheria toxin is an A-B toxin that inhibits protein synthesis within host cells by inactivating the elongation factor-2 (EF-2), leading to cell death. This exotoxin is so potent that it leads to the formation of a pseudomembrane in the throat, which is a hallmark of the disease.