BIOS 256 Exam 5 - . –Answer mouth, salivary amylase 2. The bolu...

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BIOS 256 Exam 5

• Carbohydrate digestion begins in the with the enzyme

.–Answer mouth, salivary amylase

• The bolus of food moves down the esophagus by a motility process called

.–Answer peristalsis

• Motility is accomplished in the large intestines by which processes?

–Answer haus- trations mass movements

• Most nutrient absorption occurs in the .

–Answer small intestine

• Digestion of proteins begins in the by the action of .-

–Answer stomach, proteases

• Which of the following is NOT a basic process of the gastrointestinal tract?

-digestion -synthesis -motility -secretion –Answer 1 / 2

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synthesis

• Which organ of the GI absorbs water and ions?

–Answer the colon

• Which organ produces the majority of digestive enzymes

–Answer the pancreas

• 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 –Answer the liver

• Where does the majority of nutrient absorption occur?

–Answer duodenum

• In what form are all carbohydrates absorbed?

–Answer monosaccharides

• In general, how does increased sympathetic activity alter GI activity?

–Answer re- duced GI activity

• Involuntary muscle contraction that propels contents longitudinally down the length of the

GI tract is called .–Answer peristalsis

• During which phase in the control of the digestive system would bicarbon- ate and bile be
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