Sweet and bitter tastes appear to be
A)based on a lock-and-key match between molecules and the receptors.
B)triggered by a direct flow of charged atoms into the tips of the taste cells.
C)triggered by the otolith organs in the taste buds.
D)based on the place theory of olfaction.

Question

Quizplus · Accepted Answer

Sweet and bitter tastes are indeed based on a lock-and-key match between molecules and the receptors on the taste buds, where specific molecules fit into corresponding receptors much like a key fits into a lock, triggering the perception of these tastes.

Sweet and Bitter Tastes Appear to Be