- (1) Glucose or related sugar bind receptor
- (2) Activiates a “G protein” system that involves several enzymes
- (3) Ultimately results in blocking K+ channels, which reduces K+ leaking out
of cell, which depolarizes membrane
(4) When membrane depolarizes, Ca++ channels open and Ca++ enters cell
(5) Entry of Ca++ causes release of neurotransmitter which bind to taste
afferents and can cause AP in taste afferent.