Perception of Sour Tastes Depends Upon _________

Multiple Choice

Perception of sour tastes depends upon _________.

A) a compound interacting with a G protein coupled receptor on the receptor cell surface
B) sodium ions in the food that enter H⁺ ion channels in the taste receptor plasma membrane, leading to a membrane depolarization
C) protons in the food that enter cation channels in the taste receptor plasma membrane, leading to a membrane depolarization
D) potassium ions in the food that enter cation channels in the taste receptor plasma membrane, leading to a membrane depolarization
E) protons in the food that enter cation channels in the taste receptor plasma membrane, leading to a membrane hyperpolarization