Which of the following is the MOST accurate description of Endotoxins?

A. They are lipopolysaccharides located in the outer membrane of gram-positive bacteria only
B. They are lipopolysaccharides located in the outer membrane of gram-negative bacteria only
C. Highly antigenic, induce antitoxins, and do form toxoids
D. Many have A-B subunit structure in which A subunit is the active one and the B unit is the one that binds into the cell
E. They are polypeptides secreted by certain bacteria that alter cell functions resulting in symptoms of disease


Ans: B. They are lipopolysaccharides located in the outer membrane of gram-negative bacteria only

Biology & Microbiology

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Answer the following statement true (T) or false (F)

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