Which of the Following Will Be Recognized as Foreign by the Activating

question 88

Multiple Choice

Which of the following will be recognized as foreign by the activating receptors of macrophages?

• A) lipopolysaccharides of gram-negative bacteria
• B) peptidoglycans of gram-positive bacteria
• C) both a and b
• D) neither a nor b

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Definitions:

Passive Immunity

Protection against infection, acquired by transfer of antibodies to a susceptible individual.

Antivenom

A substance, typically serum or a purified antibody, used to treat venomous bites and stings by neutralizing the specific toxins involved.

Antibodies

Proteins produced by the immune system that recognize and bind to specific antigens, helping to protect the body from pathogens.

Cytotoxic T Cell

A type of immune cell capable of killing cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.