Receptors can be activated by either endogenous agonists (such as hormones and neurotransmitters) or exogenous agonists (such as drugs), resulting in a biological response. A physiological agonist is …

Nov 27, 2025 · An agonist is a chemical messenger, or ligand, that binds to a specific receptor protein on a cell and produces a biological response. This binding event mimics the action of naturally …

The meaning of AGONIST is one that is engaged in a struggle. How to use agonist in a sentence.

An agonist is defined as a chemical that binds to and activates a receptor, thereby altering the function of its host cell. It possesses both affinity, which is the ability to bind to the receptor, and efficacy, …

A drug agonist is a substance that binds to a specific molecular target in the body, known as a receptor, and activates it. This activation initiates a biological response within cells or tissues.

May 29, 2023 · In pharmacology, an antagonist drug, or simply an agonist, is a substance that mimics the endogenous ligand and binds with the receptor to activate it and produce a similar biological …

A drug whose efficacy and affinity are sufficient for it to be able to bind to a receptor and affect cell function is an agonist. A drug with the affinity to bind to a receptor but without the efficacy to…

agonist noun [C] (PERSON) literature, theatre & film a protagonist (Definition of agonist from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

AGONIST definition: a person engaged in a contest, conflict, struggle, etc., especially the protagonist in a literary work. See examples of agonist used in a sentence.

May 27, 2025 · In pharmacology, understanding how different substances interact with receptors in the body is crucial for designing effective drugs. Agonists are substances that bind to receptors and …