D440 CHAPTER 5: DIGESTION, ABSORPTION, AND METABOLISM | COMPLETE STUDY GUIDE,
PRACTICE QUESTIONS & ANSWERS 2026/2027
Which food group interferes with zinc and iron absorption when consumed in high quantities? -
ANS ✔✔grains pg. 65
Which statement explains the reason a patient develops heartburn? - ANS ✔✔The sphincter of
the stomach is not working properly. pg. 60
How is glucose produced in the small intestine? - ANS ✔✔Glucose is derived from a
disaccharide. Disaccharide is reduced to 2 monosaccharides, glucose and fructose. pg. 62
Where does maximal digestion of nutrients occur in the gastrointestinal system? - ANS
✔✔jejunum pg. 68
Water, potassium and sodium absorption occurs in the: - ANS ✔✔Colon pg. 68
In which state are vitamins when digestion is complete? - ANS ✔✔liberated pg. 62
________ are lymph capillaries that support nutrient absorption by absorbing fat-soluble
nutrients. - ANS ✔✔Lacteals pg. 68
The main task of the large intestine is the: - ANS ✔✔Absorption of water pg. 67
Which gastrointestinal secretion assists in carrying the products of digestion through the
gastrointestinal tract? - ANS ✔✔water and electrolytes pg. 60
In which way does the intramural nerve plexus assist the gastrointestinal system to move food
along the digestive pathway? - ANS ✔✔1. Controls muscle tone in the GI wall
PRACTICE QUESTIONS & ANSWERS 2026/2027
Which food group interferes with zinc and iron absorption when consumed in high quantities? -
ANS ✔✔grains pg. 65
Which statement explains the reason a patient develops heartburn? - ANS ✔✔The sphincter of
the stomach is not working properly. pg. 60
How is glucose produced in the small intestine? - ANS ✔✔Glucose is derived from a
disaccharide. Disaccharide is reduced to 2 monosaccharides, glucose and fructose. pg. 62
Where does maximal digestion of nutrients occur in the gastrointestinal system? - ANS
✔✔jejunum pg. 68
Water, potassium and sodium absorption occurs in the: - ANS ✔✔Colon pg. 68
In which state are vitamins when digestion is complete? - ANS ✔✔liberated pg. 62
________ are lymph capillaries that support nutrient absorption by absorbing fat-soluble
nutrients. - ANS ✔✔Lacteals pg. 68
The main task of the large intestine is the: - ANS ✔✔Absorption of water pg. 67
Which gastrointestinal secretion assists in carrying the products of digestion through the
gastrointestinal tract? - ANS ✔✔water and electrolytes pg. 60
In which way does the intramural nerve plexus assist the gastrointestinal system to move food
along the digestive pathway? - ANS ✔✔1. Controls muscle tone in the GI wall