The secretion of bile, the metabolic processing of nutrients, the removal of aged red blood
cells, and the synthesis of plasma proteins are among the functions of which of the following
organs?
-the pancreas
-the esophagus
-the liver
-the stomach Correct Ans-the liver
Where does the majority of nutrient absorption occur? Correct Ans-duodenum
In what form are all carbohydrates absorbed? Correct Ans-monosaccharides
In general, how does increased sympathetic activity alter GI activity? Correct Ans-reduced
GI activity
, BIOS 256 Exam 5 Questions and Answers 100% Pass
Involuntary muscle contraction that propels contents longitudinally down the length of the GI
tract is called __________. Correct Ans-peristalsis
During which phase in the control of the digestive system would bicarbonate and bile be
stimulated? Correct Ans-intestinal phase
Norepinephrine is the neurotransmitter released by which fibers? Correct Ans-sympathetic
postganglionic fibers
Enteric interneurons that are inhibitory to smooth muscle use which of the following
neurotransmitters? Correct Ans-VIP (vasoactive intestinal peptide)
Carbohydrate digestion begins in the __________ with the enzyme __________. Correct
Ans-mouth, salivary amylase
, BIOS 256 Exam 5 Questions and Answers 100% Pass
The bolus of food moves down the esophagus by a motility process called __________.
Correct Ans-peristalsis
Motility is accomplished in the large intestines by which processes? Correct Ans-
haustrations
mass movements
Most nutrient absorption occurs in the __________. Correct Ans-small intestine
Digestion of proteins begins in the __________ by the action of __________. Correct Ans-
stomach, proteases
Which of the following is NOT a basic process of the gastrointestinal tract?
-digestion