Late One Night,while Studying for Your Anatomy Class,you Open a Box

Multiple Choice

Late one night,while studying for your anatomy class,you open a box of saltine crackers to do a little snacking.After chewing on a starchy morsel for a few minutes,you begin to notice a sweet taste in your mouth.What accounts for this?

A) "Sweet" taste receptors are slower to respond than others.
B) Activity of bacteria in the mouth lowers the pH.
C) Esophageal reflux
D) Salivary amylase activity
E) Phagocytosis by the pharyngeal tonsils produces by-products that taste sweet.