Question

trpv1 receptors are one type of receptor related to the feeling pathway that detects heat levels. capsaicin prevents humans from eating food that could harm them. capsaicin, a compound found in spicy food, ______ trpv1 receptors, causing the same sensation one would have when eating something at a dangerously high temperature, despite there being nothing hot in spicy food.
which choice completes the text with the most logical and precise word or phrase?
a suppressors
b protectors
c activators
d inhibitors

Explanation:

Capsaicin triggers the same heat-sensing receptors as actual hot temperatures, creating a false "hot" sensation in spicy food. This matches the definition of an agonist, a substance that activates a receptor to produce a biological response similar to the natural ligand.

Answer:

C. activators