Synthetic compounds that inhibit receptors by preventing the natural messenger from binding are known as
A)agonists.
B)receptor upregulators.
C)specific proteoglycans.
D)syndecans.
E)antagonists.

Question

Quizplus · Accepted Answer

Synthetic compounds that prevent the natural messenger from binding to receptors are known as antagonists. They inhibit receptor activity rather than activating it, which is what agonists do. Receptor upregulators and specific proteoglycans are not related to the inhibition of receptors. Syndecans are cell surface proteoglycans that regulate cell adhesion, but they are not directly involved in receptor inhibition.

Synthetic Compounds That Inhibit Receptors by Preventing the Natural Messenger