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8. As food travels through the digestive tract it will passthrough a series of valves and sphincters IN ORDER

a. Lower esophageal spinster; pyloric specter; ileocecal valve;internal and external anal sphincters

b. ileocecal valve; pyloric sphincter; lower esophagealsphincter; internal and external anal sphincters

c. pyloric sphincter; lower esophageal sphincter; ileceal valve;internal and external anal sphincters

d. internal and external anal sphincters; pyloric sphincter;lower esophageal sphincter; ileoceal valve

14. the uvula and epiglottis are present in order to

a. propel food toward the esophagus and stomach duringswallowing

b. prevent food from entering respiratory passages duringswallowing

c. assist with mechanical digestion in the mouth duringchewing

d. increase peristalsis in the esophagus during chewing

15. The primary function of the stomach is ___ made possible dueto the presence of ___ a. absorption, villi

b. digestion, parietal cell secretiond

c. food storage, rugae

d. propulsion; smooth muscle

18. Lipid digestion requires the following steps IN ORDER

a. absorption, micelle formation; enzyme digestion,emulsification

b. emulsification; enzyme digestion; micelle formation;absorption

c. enzyme digestion, absorption; emulsification, micelleformation

d. micelle formation; enzyme digestion; emulsification;absorption

28. The binding of a hormone to an intracellular receptor (inside the cell) would most likely

a. alter a g- protein couple receptor

b. alter a phosphorylation enzyme

c. after a second a messanger

d. alter DNA and start transcription