Differnitate between antibody and antigen with two two points
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Antigens
1. Antigens are molecules capable of stimulating an immune response. Each antigen has distinct surface features, or epitopes, resulting in specific responses.
2. Antigens may either be proteins or polysaccharides. In general, an antigen is defined as a substance that binds to specific antibodies, which in the human body are used to find and neutralize any potentially harmful foreign substances in the bloodstream
antibody
1. An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.
2. Antibodies play a key role in the immune system. They begin the process of getting rid of the invaders that may cause harm or infection.