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Once the body activated, killer T cells it recognize pathogen and destroy them. In response that will create memory B cells and T cells specific to a certain pathogen, so if it ever came back it will be killed immediately.
The cell will expel the phagosome that the pathogen was in through exocytosis.
Yes, it primarily exists in the circulatory system and destroys T-cells. This is why blood transfusions are checked for HIV/AIDS.
Both are B-cells but plasma cells are the B-cells which acted on the pathogen the first time they invade the body while the memory cells are the B-lymphocytes that act on the antigen(pathogen) the second time it invades and when ever it invades the body again.Memory cells are much faster than plasma cells though plasma cells act very quickly on the pathogen once detected. but until it gets detected it needs time.Memory cells will work as soon as the pathogen enters the body before the person could even feel the symptoms.
It depends what sort of pathogen it is and what cells are infected but in general the infected cell is destroyed by lymphocytes and then engulfed by a phagocyte to get rid of what is left.
Exoenzymes are digestive enzymes that are secreted by the pathogen into the surrounding tissues, allowing the pathogen to further invade the host's tissues. For example, Streptococcus pyogenes secretes streptokinase to dissolve blood clots, allowing wound invasion, and streptolysin, which digests red blood cells and other body cells. Clostridium perfringens, an agent of gangrene, secretes a lipase that damages cell membranes, creating more dead tissue for these bacteria to invade.
Pathogens (disease causing agents) are always present in the environment. When they invade in the body, pathogen-destroying white blood cells act as the a line of defense for the body. Macrophages and neutrophiles destroy microorganisms through phagocytosis (engulfing them whole) and are found in the interstitial fluid (outside of the blood stream and cells). The pathogen is drawn into the macrophage where enzymes such as lysozyme kill the pathogen. White blood cells can also identify certain proteins an carbohydrates on the surface of invading pathogen and this recognition triggers the cell's responses. Lymphocytes do not attack directly but instead, they recognize that the cell has become infected by a virus and release antibodies that tags to invader by binding to the antigen molecule. This triggers the mechanism that destroys the invader.
No white blood cells are not pathogens, they protect the human body from pathogens.
There is no pathogen it is more on undifferentiated or cancerous cells.
A virus.
t cells
Killer T Cells