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Sonbull [250]
3 years ago
9

A young adult is exposed to a virus that infects and replicates in mucosal epithelial cells of the upper respiratory tract. One

component of the protective immune response to this viral infection is mediated by CD8 cytolytic T lymphocytes (CTLs), which recognize and kill virus-infected cells. The CTLs can recognize and kill the infected cells because ______
Biology
1 answer:
marishachu [46]3 years ago
3 0

Answer:

The CTL has specific receptors that can recognize infected or damaged cells.

Explanation:

The cytotoxic T cells (CTL) is a type of white blood cells that specifically helps in destroying virus-infected cells (also damaged cells and cancer cells).

This type of cells has a special receptor called T-cells receptors (TCR) which ones recognize specific antigens (molecule that stimulate the immune systems because are “strange” to them). Virus inside a cell could bind to a special molecule called class I MHC, this molecule moves the virus to the surface of the cell where it can be recognized by a CD8+ specific antigen-receptor of the CTL.

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