PN105 CHAPTERS 16 AND 17 QUESTIONS AND ANSWERS

Process that builds up food molecules into more complex molecules -
ANSWER Anabolism

When food molecules enter the cell and undergo chemical changes there, the
process is called: - ANSWER assimilation

T/F The alimentary canal and the gastrointestinal tract refer to the same thing. -
ANSWER True, alimentary canal = GI tract

T/F the muscular layer of the digestive tract is responsible for peristalsis -
ANSWER True

T/F the frenulum is on the roof of the mouth and keeps food from going into the
nasal cavity when a person swallows - ANSWER False

T/F Saliva begins the process of fat digestion. - ANSWER False, saliva begins
the process of carbohydrate digestion

T/F The pyloric sphincter regulates the movement of food from the stomach
into the small intestine. - ANSWER True

T/F the gallbladder stores and concentrates bile - ANSWER True

T/F pancreatic juice helps neutralize the hydrochloric acid produced in the
stomach - ANSWER True

T/F The end product of amylase digestion is glucose - ANSWER False

T/F in the stomach, hydrochloric acid converts pepsin to trypsin - ANSWER
False, hydrochloric acid converts pepsinogen to pepsin

T/F bile emulsifiers large fat droplets into smaller fat droplets - ANSWER
True