Which of the Following Is True of Receptors

question 100

Multiple Choice

Which of the following is true of receptors?

• A) The effects of hormones do not involve receptor activation.
• B) Neurotransmitters act on binding sites on receptors to exert their effects.
• C) Receptors are insensitive to drugs.
• D) Neuromodulators are ligands that come from outside the body.
• E) Hormone receptors are found in all tissues except brain.

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Definitions:

Asymmetric Carbons

Carbon atoms bonded to four different groups, creating a chiral center and leading to possible optical isomerism.

Fischer Projection

A two-dimensional representation of a 3D organic molecule by projection, depicting stereochemistry at chiral centers.

Stereochemical Relationship

The relative spatial arrangement of atoms within molecules that dictates their chemical behavior and reactions, focusing on how these relationships affect molecular properties.

Fischer Notation

A method used to represent the three-dimensional structure of molecules using two-dimensional projections, particularly sugars.