Question

_______ describes the action of antibodies whereby antibodies bind to a pathogen and prevent the pathogen from interacting with cell receptors.

A. Antibody-dependent cell-mediated cytotoxicity
B. Antigen presentation
C. Complement fixation
D. Neutralization
E. Opsonization

Answer 1

Neutralization is the action of antibodies where they bind to a pathogen and prevent it from interacting with cell receptors. Antibodies coat the pathogens and block key sites, stopping them from entering and infecting host cells. The neutralized pathogens are then eliminated from the body.

Step-by-step explanation:

The action of antibodies whereby antibodies bind to a pathogen and prevent the pathogen from interacting with cell receptors is called Neutralization. Antibodies coat extracellular pathogens and neutralize them by blocking key sites on the pathogen that enhance their infectivity, such as receptors that "dock" pathogens on host cells. This prevents the pathogens from entering and infecting host cells. The neutralized antibody-coated pathogens can then be filtered by the spleen and eliminated in urine or feces.