Agonist vs. Antagonist

By Jaxson

Main Difference

The main difference between Agonist and Antagonist is that the Agonist is a chemical substance which, upon binding to a receptor, leads to its activation and Antagonist is a character of a work actively opposing the protagonist

  • Agonist

    An agonist is a chemical that binds to a receptor and activates the receptor to produce a biological response. Whereas an agonist causes an action, an antagonist blocks the action of the agonist, and an inverse agonist causes an action opposite to that of the agonist.

  • Antagonist

    An antagonist is the character in a story who is against the protagonist.

  • Agonist (noun)

    Someone involved in a contest or battle (as in an agon), protagonist.

  • Agonist (noun)

    The muscle that contracts while the other relaxes.

    “When bending the elbow, the biceps is the agonist.”

  • Agonist (noun)

    A molecule that can combine with a receptor on a cell to produce a physiological reaction.

    “Acetylcholine is an agonist at the cholinergic receptor.”

  • Antagonist (noun)

    An opponent or enemy.

  • Antagonist (noun)

    One who antagonizes or stirs.

  • Antagonist (noun)

    A chemical that binds to a receptor but does not produce a physiological response, blocking the action of agonist chemicals.

  • Antagonist (noun)

    The main character or force opposing the protagonist in a literary work or drama.

  • Antagonist (noun)

    A muscle that acts in opposition to another.

    “A flexor, which bends a part, is the antagonist of an extensor, which extends it.”

  • Antagonist (noun)

    a person who actively opposes or is hostile to someone or something; an adversary

    “he turned to confront his antagonist”

  • Antagonist (noun)

    a substance which interferes with or inhibits the physiological action of another

    “LSD is a serotonin antagonist”

  • Antagonist (noun)

    a muscle whose action counteracts that of another specified muscle.

Oxford Dictionary

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