BIO 256 EXAM 1 REVIEW 2025
QUESTIONS AND ANSWERS
Function of digestive system - ANS processes food, extracts nutrients and eliminates residue
the physical breakdown of food into smaller parts - ANS mechanical digestion
A series of hydrolysis reactions that break dietary macromolecules into their monomers -
ANS chemical digestion
6 accessory organs - ANS teeth, tongue, salivary glands, liver, gallbladder, pancreas
what makes up the gi tract - ANS stomach and intestines
mechanical digestion occurs where - ANS grinding of teeth and churning of stomach and
small intestine
chemical digestion occurs where - ANS digestive enzymes produced by salivary glands,
stomach, pancreas, and small intestine
most absorption occurs where - ANS small intestine
small mucosal projections that increase surface area for absorption - ANS villi
permanent transverse folds in the intestinal lining - ANS circular folds
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, four layers of the digestive tract - ANS mucosa, submucosa, muscularis externa, serosa
(from inner to outer)
the submucosal plexus is located ____ - ANS in the submucosa layer
the myenteric plexus is located between two layers of the - ANS muscularis externa
function of submucosal plexus - ANS control glandular secretions of mucosa and movement
of muscularis mucosae
function of myenteric plexus - ANS controls peristalsis and other contractions of muscularis
externa
what are the three salivary glands - ANS parotid, submandibular, sublingual
function of saliva - ANS begins starch and fat digestion, inhibits bacterial growth, binds food
together to form bolus, dissolves molecules to stimulate taste buds
two enzymes in the saliva - ANS salivary amylase and lingual lipase
salivary amylase function - ANS begins starch digestion and breaks down polysaccharides
lingual lipase function - ANS activated by stomach acid and digests fat after food is
swallowed and breaks down triglycerides
what is deglutination - ANS swallowing
first phase of swallowing - ANS oral phase (voluntary control)
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QUESTIONS AND ANSWERS
Function of digestive system - ANS processes food, extracts nutrients and eliminates residue
the physical breakdown of food into smaller parts - ANS mechanical digestion
A series of hydrolysis reactions that break dietary macromolecules into their monomers -
ANS chemical digestion
6 accessory organs - ANS teeth, tongue, salivary glands, liver, gallbladder, pancreas
what makes up the gi tract - ANS stomach and intestines
mechanical digestion occurs where - ANS grinding of teeth and churning of stomach and
small intestine
chemical digestion occurs where - ANS digestive enzymes produced by salivary glands,
stomach, pancreas, and small intestine
most absorption occurs where - ANS small intestine
small mucosal projections that increase surface area for absorption - ANS villi
permanent transverse folds in the intestinal lining - ANS circular folds
COPYRIGHT © 2025 FYNDLAY ALL RIGHTS RESERVED 1
, four layers of the digestive tract - ANS mucosa, submucosa, muscularis externa, serosa
(from inner to outer)
the submucosal plexus is located ____ - ANS in the submucosa layer
the myenteric plexus is located between two layers of the - ANS muscularis externa
function of submucosal plexus - ANS control glandular secretions of mucosa and movement
of muscularis mucosae
function of myenteric plexus - ANS controls peristalsis and other contractions of muscularis
externa
what are the three salivary glands - ANS parotid, submandibular, sublingual
function of saliva - ANS begins starch and fat digestion, inhibits bacterial growth, binds food
together to form bolus, dissolves molecules to stimulate taste buds
two enzymes in the saliva - ANS salivary amylase and lingual lipase
salivary amylase function - ANS begins starch digestion and breaks down polysaccharides
lingual lipase function - ANS activated by stomach acid and digests fat after food is
swallowed and breaks down triglycerides
what is deglutination - ANS swallowing
first phase of swallowing - ANS oral phase (voluntary control)
COPYRIGHT © 2025 FYNDLAY ALL RIGHTS RESERVED 2
