NUTRITION
THE HUMAN BODY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They keep blood from flowing out of the body
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They make hormones that prevent infections
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They build new cells for damaged tissues
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They produce molecules that recognize pathogens.
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Detailed explanation-1: -White blood cells, also called leucocytes, detect and deal with infections or foreign molecules that enter your body. White blood cells will produce antibodies to fight the infection and help with other immune responses.
Detailed explanation-2: -White blood cells called lymphocytes identify the antigen marker of the pathogen and activate the helper T cell. It triggers the B cells(types of lymphocytes) to begin to make proteins called antibodies. These antibodies recognize and destroy the pathogens such as viruses, fungi, bacteria, etc.
Detailed explanation-3: -Antigens are substances (usually proteins) on the surface of cells, viruses, fungi, or bacteria. Nonliving substances such as toxins, chemicals, drugs, and foreign particles (such as a splinter) can also be antigens. The immune system recognizes and destroys, or tries to destroy, substances that contain antigens.