A compound that could prevent the cleavage of propeptides for endogenous opioids would likely:
A) lead to greater activation of receptors by propeptides.
B) cause a decrease in endogenous opioid neurotransmission.
C) have no affect on neurotransmission since the endogenous opioids are contained within the neuropeptide.
D) prevent endogenous opioids from crossing the blood-brain barrier.

Question

Quizplus · Accepted Answer

If the cleavage of propeptides for endogenous opioids is prevented, it would lead to a decrease in endogenous opioid neurotransmission because the propeptides are inactive and need to be cleaved to become active. Therefore, if the cleavage is prevented, there will be a decrease in their activity at the receptors.

A Compound That Could Prevent the Cleavage of Propeptides for Endogenous