Which of the Following Statements Correctly Describes Exotoxins and Endotoxins

question 43

Multiple Choice

Which of the following statements correctly describes exotoxins and endotoxins produced by various bacteria?

• A) endotoxins are secreted into the environment while the bacteria is still alive
• B) exotoxins are secreted into the environment while the bacteria is still alive
• C) exotoxins are only released into the environment when the bacteria dies and their cell walls break down
• D) exotoxins are components of the outer membrane of the bacteria that produce them

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Definitions:

Dithiothreitol

A chemical compound used as a reducing agent to break disulfide bonds in proteins, facilitating their denaturation.

Peptide

A short chain of amino acids linked by peptide bonds, which is the building block of proteins.

Phenyl Isothiocyanate

A chemical reagent used in the Edman degradation method for sequencing amino acids in peptides.

N-terminal

The N-terminal refers to the start or initiating end of a polypeptide or protein, characterized by the presence of an amino group (-NH2).