Immunoassay and Hormone Detection
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Questions and Answers

What is the result of the interaction between the soluble antigen and antibody?

  • The breakdown of the antigen into smaller fragments
  • The formation of an insoluble lattice that forms precipitate out of the solution (correct)
  • The formation of a suspension
  • The formation of a soluble complex
  • What happens to the insoluble lattice formed in the interaction between the soluble antigen and antibody?

  • It is broken down into smaller fragments
  • It forms a suspension
  • It precipitates out of the solution (correct)
  • It remains in solution
  • What is the nature of the lattice formed in the interaction between the soluble antigen and antibody?

  • Soluble
  • Partially soluble
  • Colloidal
  • Insoluble (correct)
  • What is the fundamental component of the precipitate formed in the interaction between the soluble antigen and antibody?

    <p>Insoluble lattice</p> Signup and view all the answers

    What is the underlying process that leads to the formation of the insoluble lattice in the interaction between the soluble antigen and antibody?

    <p>Antigen-antibody binding</p> Signup and view all the answers

    What is the main characteristic of an antibody combining site?

    <p>The ability to react with only one antigenic determinant</p> Signup and view all the answers

    What is the term for the ability of an antibody to react with only one antigenic determinant?

    <p>Specificity</p> Signup and view all the answers

    What is an example of a pathogen that can be detected by IgM antibodies?

    <p>Cytomegalovirus</p> Signup and view all the answers

    What type of antibody is produced first in response to an infection?

    <p>IgM</p> Signup and view all the answers

    What is the relationship between an antibody and its antigenic determinant?

    <p>One antibody can bind to one antigenic determinant</p> Signup and view all the answers

    What is one of the uses of serological means?

    <p>Detection of autoantibody</p> Signup and view all the answers

    What can serological means measure?

    <p>The minute amount of hormones</p> Signup and view all the answers

    What is another application of serological means?

    <p>Immunoassay of hormones</p> Signup and view all the answers

    What is another use of serological means in pharmacology?

    <p>Detection of offending drugs</p> Signup and view all the answers

    What is the primary advantage of serological means?

    <p>They are highly sensitive</p> Signup and view all the answers

    What is the condition necessary for precipitation to occur?

    <p>Concentrations of antigen and antibody are equal</p> Signup and view all the answers

    What happens if the concentration of antigen is in excess?

    <p>No precipitation occurs</p> Signup and view all the answers

    What is the result of a deficient concentration of antibody?

    <p>No precipitation occurs</p> Signup and view all the answers

    Under what condition does precipitation occur?

    <p>When concentrations of antigen and antibody are equivalent</p> Signup and view all the answers

    What happens when the concentration of antigen is equal to the concentration of antibody?

    <p>Precipitation occurs</p> Signup and view all the answers

    What is the relationship between Ab and Ag?

    <p>Ab is specific to Ag and there is no similar Ag</p> Signup and view all the answers

    What happens when Ab and Ag are mixed together in a petri dish?

    <p>Two precipitation lines are formed</p> Signup and view all the answers

    What is the purpose of incubation in the ELISA method?

    <p>To allow the reaction to occur between Ab and Ag</p> Signup and view all the answers

    What can cause false positive results in the ELISA method?

    <p>Using a non-specific Ab</p> Signup and view all the answers

    What is the purpose of using agar in the ELISA method?

    <p>To provide a solid medium for the reaction to occur</p> Signup and view all the answers

    What is the result of mixing Ab with multiple Ag in the ELISA method?

    <p>Multiple precipitation lines are formed</p> Signup and view all the answers

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