Question

Which of the following immunological activities does NOT occur at sites of infection during an immune response?

phagocytosis by macrophages, neutrophils, and dendritic cells

the killing of infected cells by effector T cells

opsonization of bacteria

Activation of T cells by antigen-presenting cells

Answer 1

Option D-Activation of T cells by antigen-presenting cells

Activation of T cells by Antigen presenting cells occurs in peripheral lymphoid organs .

All other Responses occur at site of infection.

When there is an infection,there is increases blood flow,So that cells like macrophages, neutrophils, and dendritic cells reaches the Infected cells.

Antibodies Helps Opsonisation and neutralization of Toxins

Opzonization helps Phagocytosis of Bacteria by macrophages, neutrophils, and dendritic cells at the site of infection.

After Activation of T cells,Cytotoxic T cells kills the infected T cells