Natural killer nk cells are also called cytotoxic t cells

Asked by admin @ 29/10/2021 in Biology viewed by 332 People

Cytotoxic T (TC) cells are like natural killer (NK) cells because they both:________.

a) participate in innate immunity
b) secrete interferons
c) secrete TNF (tumor necrosis factor)
d) participate in the immune response
e) secrete granzymes and perforin

Answered by admin @ 29/10/2021

Answer: Option A.

participate in innate immunity

secrete granzymes and perforin

Explanation:

Cytotoxic T (TC) cells are like natural killer (NK) cells because they both because participate in innate immunity they are components of innate immune system i.e white blood cells that fight against disease or act as defence for infections.

NK cells can recognize and destroy cells that have regulated MHC class I molecules from their cell surface. They recognise the viral pathogens and activate the receptor that bind to the target cell and it releases cytotoxic granules that contain perforin and granzymes, which leads to lysis of the target cell and then it's clear off the infection by producing antibodies.

Natural killer nk cells are also called cytotoxic t cells

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