PATHOLOGY

PATHOLOGY MCQ

IMMUNE RESPONSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When antibodies surround a virus so that it can’t enter a cell, it is called
A
neutralization
B
activation
C
opsonization
D
digestion
Explanation: 

Detailed explanation-1: -Figure 2: Neutralizing antibodies bind to spike proteins on the surface of SARS-CoV-2 and prevent the virus from binding and entering the host cell.

Detailed explanation-2: -What is the Difference Between Opsonization and Neutralization? Opsonization is the process of removing pathogens by marking with the opsonins while neutralization is the process of removing the effect of an antigen by binding with a neutralizing antibody.

Detailed explanation-3: -A blocking antibody binds its target and directly interferes with its function, such as blocking cell adhesion or receptor-ligand binding. A neutralizing antibody binds its target and negates its downstream cellular effects, such as cell proliferation or chemotaxis.

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