Difference Between Antigen and Antibody

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Difference Between Antigen and Antibody

• - Urgent Care Texas

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What Is Antigen?

• Antigens, also known as immunogens, are toxins or
  compounds in our blood that cause our body to
  resist them for being foreign substances.
  Antigens are mainly bacteria or viruses, but they
  can also be foreign substances that pose a health
  risk. 
• Antigens activate our bodys disease-fighting
  white blood cells, known as lymphocytes. They
  stimulate white blood cells to produce cells
  called antibodies that try to protect our body by
  attacking these antigens.
• Heteroantigens and autoantigens are the two
  primary categories of antigens. Heteroantigens
  are compounds that are not manufactured by or
  found naturally in our body, and they include
  substances such as protozoa, bacteria, viruses,
  snake venom, and other elements. 
• Autoantigens, also known as self-antigens, are
  proteins produced naturally by our body to combat
  our cells and usually indicate an autoimmune
  disease. These mostly help to strengthen our
  immune system by helping our body generate
  antibodies before any external antigens can even
  enter the body.

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What Is Antibody?

• Antibodies Y-shaped proteins produced by B
  lymphocytes or B cells in our immune system.
  These B lymphocytes assault and remove viruses
  and other poisons. They accomplish this by
  developing antibodies that are specific to a
  single antigen.
• These antigen-specific antibodies bind to their
  antigens and mark them for any attack. Thus, they
  ensure our bodies and all our healthy cells
  remain safe from any antigen attack. 
• Antibodies (immunoglobulins) come in a variety of
  forms.
• IgG
• These are the antibodies that are found in the
  highest concentration in our plasma. They cleanse
  the body of harmful toxins while also providing
  long-term protection.
• IgM
• These are the earliest antibodies produced by B
  cells in response to antigens.
• IgA
• These antibodies bind to antigens and transport
  them out of your body through mucus or other
  bodily fluids.

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• Differences Between Antigen And Antibody
• Here are the critical differences between
  antigens and antibodies
• Antibodies, also known as Immunoglobulins, have
  protein, a molecule type, while antigens have a
  lipid molecular type. However, antigens can also
  have nucleic acids, carbohydrates, and proteins
  as their molecular type.
• While antigens cause illnesses and allergic
  reactions, antibodies help the body protect
  itself against these antigens effects. 
• Lastly, antigens originate outside the body,
  while antibodies form inside the body. Antibodies
  are formed in response to antigens they help
  immobilize antigens to protect the body from
  allergies or illnesses. 
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