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Which of the following develops immune system in the body ?
1. Antigen
2. Antibody
3. Enzymes
4. Hormones

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Correct Answer - Option 1 : Antigen

The Correct Answer is Antigen.

  • Any substance that causes your immune system to produce antibodies against it is known as an antigen.
  • This indicates that your immune system has misidentified the substance and is attempting to combat it.
  • Material from the environment, such as chemicals, bacteria, viruses, or pollen, may act as an antigen. Antigens can also develop within the body.
  • Proteins, peptides (amino acid chains), and polysaccharides (chains of monosaccharides/simple sugars) are all antigens, but lipids and nucleic acids only become antigens when they are mixed with proteins and polysaccharides.
  • Vaccines are immunogenic antigens that are administered to a recipient with the aim of inducing the adaptive immune system's memory mechanism of antigens of the pathogen invading the recipient.

  • Antibodies are large, Y-shaped proteins that the immune system uses to recognize and neutralize foreign objects like bacteria and viruses.
  • Enzymes are biological catalysts that are proteins (biocatalysts).
  • Hormones are signaling molecules that are transported to distant organs in multicellular organisms to control physiology and/or behavior.

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