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Peristalsis mixes food with digestive enzymes in small segments of the alimentary canal.

A) True
B) False

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Lymph transports fat molecules with longer chains of carbon atoms away from the small intestine.

A) True
B) False

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The __________ sphincter is a valve that controls the movement of food between the stomach and small intestine.

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Plant proteins typically contain less than adequate amounts of __________.


A) essential amino acids
B) nonessential amino acids
C) dipeptides
D) polypeptides
E) glucose

F) A) and D)
G) A) and B)

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What do the parietal cells of gastric glands secrete?


A) Mucus
B) Pepsinogen
C) Hydrochloric acid
D) Pepsin
E) Gastrin

F) A) and E)
G) A) and D)

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Rough projections on the tongue that provide friction are called __________.

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Because of their location, swollen palatine tonsils may interfere with what actions?


A) Chewing and swallowing
B) Breathing and chewing
C) Swallowing and breathing

D) B) and C)
E) A) and B)

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Loperamide is a medication used to slow and stop diarrhea. It inhibits nervous signalling to the large intestine, relaxing the smooth muscles within the intestinal wall and preventing intestinal contents from moving forward. What type of movement does loperamide prevent?


A) Mass movement
B) Deglutition
C) Mastication
D) Segmentation

E) A) and B)
F) A) and D)

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What occurs in the swallowing reflex?


A) The soft palate, larynx, and hyoid bone are raised.
B) The uvula closes off the top of the trachea.
C) The tongue presses the epiglottis closed.
D) The muscle contraction increases pressure within the esophagus.
E) The sympathetic nervous system stimulates peristalsis.

F) A) and D)
G) All of the above

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What does salivary amylase digest?


A) Carbohydrates
B) Proteins
C) Fats
D) Vitamins

E) A) and D)
F) A) and C)

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Which of the following is stimulated by overdistention of the small-intestine wall?


A) Peristaltic rush
B) Segmentation
C) Release of secretin
D) Release of mucus

E) B) and C)
F) C) and D)

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