how antibodies protect the body
Answers
Answer:
An antibody, also known as an immunoglobulin, is a large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and viruses. The antibody recognizes a unique molecule of the pathogen, called an antigen.
Antibodies have three main functions: 1) Antibodies are secreted into the blood and mucosa, where they bind to and inactivate foreign substances such as pathogens and toxins (neutralization). 2) Antibodies activate the complement system to destroy bacterial cells by lysis (punching holes in the cell wall).
The antibodies destroy the antigen (pathogen) which is then engulfed and digested by macrophages. White blood cells can also produce chemicals called antitoxins which destroy the toxins (poisons) some bacteria produce when they have invaded the body.
Answer:
Antibodies help the body to fight microbes or the toxins (poisons) they produce.They do this by recognising substances called antigens on the surface of the microbe, or in the chemicals they produce, which mark the
microbe or toxin as being foreign. The antibodies then mark these antigens for destruction. There are many cells,
proteins and chemicals involved in this attack.
Explanation:
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