Chapter 5: Digestion, Absorption, and Metabolism

Chapter 5: Digestion, Absorption, and Metabolism

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

1. The process of digestion involves _____ and _____ actions.

a.	thermal, chemical
b.	chemical, electrical
c.	mechanical, chemical
d.	mechanical, thermal

 

 

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:   65                  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 forward through the gastrointestinal tract. The smooth muscles of the gastrointestinal wall provide these two movements to ensure continuous passage of the food mass and valve control along its journey.

 

DIF:    Cognitive Level: Knowledge            REF:   66                  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 and buffer ions, mucus, water and electrolytes.

 

DIF:    Cognitive Level: Application           REF:   67                  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 is called

a.	peristalsis.
b.	segmentation.
c.	pendular movements.
d.	mastication.

 

 

ANS:  D

Mastication begins mechanical digestion in the mouth. Mastication is the biting and chewing that begins to break food into smaller particles.

 

DIF:    Cognitive Level: Knowledge            REF:   66                  TOP:   Nursing Process: Planning

MSC:   NCLEX: Physiological Integrity: Physiological Adaptation