Purdue University ANSC 221 - Exam 2
Questions With Verified Answers
digestion
all of the chemical and physical changes that food undergoes to be absorbed
absorption
takes place as nutrients enter the body from the digestive tract
digestive system
GI tract: mouth, esophagus, stomach, small/large intestine, liver, gall bladder, pancreas
mouth
includes lips, teeth, tongue, salivary glands
prehension
grasping of food by the lips
prehensile lip
the top lip that has been split into two sections to help grasp and take in food
mastication
the process of chewing, preformed by the teeth
swallowing
the step of digestion after chewing, preformed by the tongue/esophagus
true
True or false? Herbivores only have bottom front teeth
bicarbonate
____________ is a mouth secretion produced only in ruminants
salivary amylase
____________ is a mouth secretion produced only in nonruminants
salivary amylase (enzyme)
an enzyme that digests amylose (a type of starch)
crop
an organ present in birds in which food is temporarily stored and is somewhat softened
monogastric
has a simple stomach
, ruminant
has a four-chambered complex stomach
pyloric
the ______ region of the stomach has a flap that opens and closes the stomach
stomach
Functions of this organ of the digestive system include storage and some chemical digestion
esophageal, cardiac, fundic, pyloric
What are the four regions of a monogastric stomach?
proventriculus
the stomach of a bird
gizzard
Found in birds: Thick muscular wall; breaks down food mechanically, instead of teeth
proventriculus (follows)
The gizzard follows the ______________.
crop (follows)
The proventriculus follows the _________.
mucin
lines the stomach to prevent acid from harming it
hydrochloric acid
activates pepsinogen to pepsin
pepsin
active form of pepsinogen
pepsin (function)
digests proteins
lipase
digests lipids
gastric enzymes
___________ are inactive when secreted so they don't consume the cell that makes them
Questions With Verified Answers
digestion
all of the chemical and physical changes that food undergoes to be absorbed
absorption
takes place as nutrients enter the body from the digestive tract
digestive system
GI tract: mouth, esophagus, stomach, small/large intestine, liver, gall bladder, pancreas
mouth
includes lips, teeth, tongue, salivary glands
prehension
grasping of food by the lips
prehensile lip
the top lip that has been split into two sections to help grasp and take in food
mastication
the process of chewing, preformed by the teeth
swallowing
the step of digestion after chewing, preformed by the tongue/esophagus
true
True or false? Herbivores only have bottom front teeth
bicarbonate
____________ is a mouth secretion produced only in ruminants
salivary amylase
____________ is a mouth secretion produced only in nonruminants
salivary amylase (enzyme)
an enzyme that digests amylose (a type of starch)
crop
an organ present in birds in which food is temporarily stored and is somewhat softened
monogastric
has a simple stomach
, ruminant
has a four-chambered complex stomach
pyloric
the ______ region of the stomach has a flap that opens and closes the stomach
stomach
Functions of this organ of the digestive system include storage and some chemical digestion
esophageal, cardiac, fundic, pyloric
What are the four regions of a monogastric stomach?
proventriculus
the stomach of a bird
gizzard
Found in birds: Thick muscular wall; breaks down food mechanically, instead of teeth
proventriculus (follows)
The gizzard follows the ______________.
crop (follows)
The proventriculus follows the _________.
mucin
lines the stomach to prevent acid from harming it
hydrochloric acid
activates pepsinogen to pepsin
pepsin
active form of pepsinogen
pepsin (function)
digests proteins
lipase
digests lipids
gastric enzymes
___________ are inactive when secreted so they don't consume the cell that makes them
