A new drug was tested in an in vitro system. It was found that only - ProProfs Discuss
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A new drug was tested in an in vitro system. It was found that only one enantiomer of the racemic pair bound substantially to a specific receptor, whereas the other enantiomer showed a negligible binding. Which of the following terms best defines this property?



A. Intrinsic activity
B. Affinity
C. Stereo-selectivity
D. Potency
E. Variability
F. Maximal efficacy
Asked by Evelyn, Last updated: Apr 03, 2020

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John Smith

John Smith

Answered Sep 09, 2016

Stereo-selectivity-3) learning objective: define the term stereo-selectivityanswer: ca peculiar property of receptors is stereo-selectivity, that is often they bind only one enantiomerof a racemic pair.a) intrinsic activity refers to the ability of a drug (once bound to a receptor) to initiate changeswhich lead to a biological response.b) affinity refers to the tendency of a drug to bind to a receptor.d) potency refers to the dose of a drug required to produce a given effect.e) variability refers to the fact that the number of receptors can vary with time.f) maximal efficacy refers to the maximal effect that can be produced by a drug
 

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