Chapter 05: Digestion, Absorption, and Metabolism Nix: Williams' Basic Nutrition and Diet Therapy, 15th Edition

TEST BANK FOR WILLIAMS' BASIC NUTRITION AND DIET THERAPY 15TH EDITION BY NIX


Chapter 05: Digestion, Absorption, and Metabolism Chapter 05:
Nix: Williams' Basic Nutrition and Diet Therapy, 15th Edition


MULTIPLE CHOICE

1. The process of digestion involves
a. thermal and chemical actions.
b. chemical and metabolic actions.
c. mechanical and chemical actions.
d. mechanical and thermal actions.

ANS: C
For nutrients to be delivered to the cells, food goes through a series of mechanical and
chemical changes.

DIF: Cognitive Level: Knowledge REF: p. 56 TOP: Nursing Process: Planning
MSC: NCLEX: Physiological Integrity: Physiological Adaptation

2. The rhythmic contractions of the stomach and intestine that propel food along are called
a. segmentation.
b. peristalsis.
c. cardiospasm.
d. pendular movements.

ANS: B
Peristalsis is the alternating muscular contractions and relaxations that force the contents
NURStract.
forward through the gastrointestinal INGThe
TB. COM muscles of the gastrointestinal wall
smooth
provide these two movements to ensure continuous passage of the food mass along its
journey.

DIF: Cognitive Level: Knowledge REF: p. 57 TOP: Nursing Process: Planning
MSC: NCLEX: Physiological Integrity: Physiological Adaptation

3. An example of a gastric secretion is
a. intestinal lipase.
b. pancreatic amylase.
c. bile.
d. hydrochloric acid.

ANS: D
Gastric secretions include enzymes, hydrochloric acid, buffer ions, mucus, water and
electrolytes.

DIF: Cognitive Level: Application REF: p. 57 TOP: Nursing Process: Planning
MSC: NCLEX: Physiological Integrity: Physiological Adaptation

4. A pizza slice is being consumed by a hungry teen. The first actions of biting, chewing, and
breaking up the slice into smaller particles are called
a. peristalsis.
b. segmentation.
c. pendular movements.


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, TEST BANK FOR WILLIAMS' BASIC NUTRITION AND DIET THERAPY 15TH EDITION BY NIX

d. mastication.
ANS: D
Mastication begins the mechanical digestion in the mouth. Mastication is the biting and
chewing that begins to break food into smaller particles.

DIF: Cognitive Level: Knowledge REF: p. 58 TOP: Nursing Process: Planning
MSC: NCLEX: Physiological Integrity: Physiological Adaptation

5. A food that begins chemical digestion in the mouth is
a. chicken.
b. yogurt.
c. candy.
d. bread.
ANS: D
In the mouth, salivary glands secrete salivary amylase, which is the general name for any
starch-splitting enzyme. Thus, a food with starch content, such as bread, could begin its
chemical digestion in the mouth.

DIF: Cognitive Level: Application REF: p. 58 TOP: Nursing Process: Planning
MSC: NCLEX: Physiological Integrity: Physiological Adaptation

6. After ingested food is mixed and churned with gastric secretions, the semifluid mass is called
a. chyle.
b. chyme.
c. renin.
d. bolus. NURSINGTB.COM
ANS: B
By the time the food mass reaches the lower portion of the stomach, it is a semiliquid,
acid–food mix called chyme.

DIF: Cognitive Level: Knowledge REF: p. 58 TOP: Nursing Process: Planning
MSC: NCLEX: Physiological Integrity: Physiological Adaptation

7. One type of movement in the small intestine is
a. mastication.
b. segmentation.
c. kinetic propulsion.
d. expulsion.
ANS: B
The intestinal muscles produce several types of movement that aid digestion, including
peristalsis, pendular movements, segmentation, longitudinal rotation, and surface villi
motions.

DIF: Cognitive Level: Knowledge REF: p. 59 TOP: Nursing Process: Planning
MSC: NCLEX: Physiological Integrity: Physiological Adaptation

8. Compared with the pH in the stomach, the pH in the small intestine is
a. lower.



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