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BIOL 100 Exam 3 (V.2) –Questions & Answers
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BIOL 100 Exam 3 (V.2) –Questions & Answers
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BIOL 100 Exam 3 (V.2) –Questions & AnswersA ✔️Ans The layer of the GI tract wall that is responsible for motility
is the
A. muscularis.
B. serosa.
C. submucosa.
D. mucosa.
C ✔️Ans When you put food into your mouth and grind it up with
your teeth you are performing what kind of process?
A. Chemical digestion
B. Secretion
C. Mechanical digestion
D. Absorption
B ✔️Ans The process by which undigested material is removed from
the gastrointestinal tract is
A. mechanical processing.
B. elimination.
C. secretion.
D. absorption.
A ✔️Ans The process by which food is propelled through the
digestive tract by alternating contraction and relaxation of smooth muscle is
A. peristalsis.
B. secretion.
C. chemical digestion.
D. elimination.
C ✔️Ans Once a bolus of food has been formed in the mouth, it is
passed by the tongue and jaws to the
A. esophagus
B. stomach
C. pharynx
D. small intestine
B ✔️Ans During swallowing,
, A. the tongue flattens to the bottom of the mouth.
B. the epiglottis bends to close the trachea.
C. smooth muscle in the esophagus contracts slightly.
D. salivary secretions stop.
C ✔️Ans Pepsin is a digestive enzyme that specifically targets
A. starch.
B. fatty acids.
C. protein.
D. glycogen.
D ✔️Ans Bile is produced by the ________ and stored in the ________.
A. small intestine, liver
B. small intestine, gall bladder
C. stomach, small intestine
D. liver, gall bladder
B ✔️Ans The watery mixture of partially digested food produced in
the stomach is called
A. bolus.
B. chyme.
C. feces.
D. mucin.
C ✔️Ans The pancreatic ducts connect to the small intestine at the
A. cecum.
B. jejunum.
C. deudenum.
D. ileum.
A ✔️Ans In the small intestine, amino acids and monosaccharides are
moved into the mucosal cells by the process of
A. active transport.
B. facilitated diffusion.
C. endocytosis.
D. diffusion.
B ✔️Ans The pancreas aids in the chemical digestion of food by
A. producing and releasing gastrin into the stomach.
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