Page 1 of 31
DHN 101 2026 EXAM REVIEW COMPLETE
(150) CURRENT TESTING QUESTIONS AND
DETAILED CORRECT
ANSWERS|GUARANTEED PASS.
DHN
Prepare effectively with this DHN 101 Exam Review, designed to
reinforce key concepts in dietetics and human nutrition. It
focuses on nutrient functions, digestion, dietary guidelines, and
health promotion strategies. The review strengthens
understanding and retention of essential nutrition principles.
Suitable for nutrition and healthcare students preparing for
exams.
The ________ is a flap-like piece of tissue responsible for
keeping a swallowed piece of food from entering the
trachea. ✓ ✓ ...... ANSWER ....... epiglottis
Which of the following statements is true? ✓ ✓ ......
ANSWER ....... Heartburn often results when the lower
esophageal sphincter fails to close properly
, Page 2 of 31
A primary function of the digestive system is the ✓ ✓ ......
ANSWER ....... breakdown of food into nutrients
Which of the following is an example of mechanical
digestion in the GI tract? ✓ ✓ ...... ANSWER .......
Chewing food up into smaller pieces in the mouth
The condition in which a person cannot detect any odors is
called ✓ ✓ ...... ANSWER ....... Anosima
The enzyme ________ breaks the disaccharide maltose into
its two molecules of glucose. ✓ ✓ ...... ANSWER .......
Maltase
The innermost layer of the wall of the GI tract is the ✓ ✓ ......
ANSWER ....... mucosa
April is starting to train for hotdog eating contests. She is
curious about the maximum capacity of the stomach. About
what is believed to be the maximum capacity of the
stomach? ✓ ✓ ...... ANSWER ....... 16 cups
, Page 3 of 31
After moving through the ileocecal sphincter, unabsorbed
water and undigested remains of chyme enter the jejunum.
✓ ✓ ...... ANSWER ....... False
The ________ sphincter is located between the stomach and
small intestine. ✓ ✓ ...... ANSWER ....... pyloric
Which of the following compounds is not secreted by the
human stomach? ✓ ✓ ...... ANSWER ....... Bile
The surface area of the small intestine is about the size of ✓
✓ ...... ANSWER ....... a regulation singles tennis court
The ________ helps form feces by absorbing excess water
and some minerals from chyme. ✓ ✓ ...... ANSWER .......
large intestine
Which of the following typically acts as a probiotic? ✓ ✓
...... ANSWER ....... Yogurt
, Page 4 of 31
Treatment of irritable bowel syndrome often includes making
dietary changes and ✓ ✓ ...... ANSWER ....... learning
stress management strategies
Small amounts of food move from the back of the mouth and
through the esophagus by involuntary muscular movements
called ✓ ✓ ...... ANSWER ....... peristalsis
The ________ is important for transporting absorbed
nutrients from the GI tract to the liver. ✓ ✓ ...... ANSWER
....... hepatic portal vein
Which of the following is not a function of cholecystokinin?
✓ ✓ ...... ANSWER ....... Control the secretion of mucus
by the mucus cells
The process of digesting food begins in the ✓ ✓ ......
ANSWER ....... mouth
Risk factors for constipation include all of the following
except ✓ ✓ ...... ANSWER ....... drinking too much
water
DHN 101 2026 EXAM REVIEW COMPLETE
(150) CURRENT TESTING QUESTIONS AND
DETAILED CORRECT
ANSWERS|GUARANTEED PASS.
DHN
Prepare effectively with this DHN 101 Exam Review, designed to
reinforce key concepts in dietetics and human nutrition. It
focuses on nutrient functions, digestion, dietary guidelines, and
health promotion strategies. The review strengthens
understanding and retention of essential nutrition principles.
Suitable for nutrition and healthcare students preparing for
exams.
The ________ is a flap-like piece of tissue responsible for
keeping a swallowed piece of food from entering the
trachea. ✓ ✓ ...... ANSWER ....... epiglottis
Which of the following statements is true? ✓ ✓ ......
ANSWER ....... Heartburn often results when the lower
esophageal sphincter fails to close properly
, Page 2 of 31
A primary function of the digestive system is the ✓ ✓ ......
ANSWER ....... breakdown of food into nutrients
Which of the following is an example of mechanical
digestion in the GI tract? ✓ ✓ ...... ANSWER .......
Chewing food up into smaller pieces in the mouth
The condition in which a person cannot detect any odors is
called ✓ ✓ ...... ANSWER ....... Anosima
The enzyme ________ breaks the disaccharide maltose into
its two molecules of glucose. ✓ ✓ ...... ANSWER .......
Maltase
The innermost layer of the wall of the GI tract is the ✓ ✓ ......
ANSWER ....... mucosa
April is starting to train for hotdog eating contests. She is
curious about the maximum capacity of the stomach. About
what is believed to be the maximum capacity of the
stomach? ✓ ✓ ...... ANSWER ....... 16 cups
, Page 3 of 31
After moving through the ileocecal sphincter, unabsorbed
water and undigested remains of chyme enter the jejunum.
✓ ✓ ...... ANSWER ....... False
The ________ sphincter is located between the stomach and
small intestine. ✓ ✓ ...... ANSWER ....... pyloric
Which of the following compounds is not secreted by the
human stomach? ✓ ✓ ...... ANSWER ....... Bile
The surface area of the small intestine is about the size of ✓
✓ ...... ANSWER ....... a regulation singles tennis court
The ________ helps form feces by absorbing excess water
and some minerals from chyme. ✓ ✓ ...... ANSWER .......
large intestine
Which of the following typically acts as a probiotic? ✓ ✓
...... ANSWER ....... Yogurt
, Page 4 of 31
Treatment of irritable bowel syndrome often includes making
dietary changes and ✓ ✓ ...... ANSWER ....... learning
stress management strategies
Small amounts of food move from the back of the mouth and
through the esophagus by involuntary muscular movements
called ✓ ✓ ...... ANSWER ....... peristalsis
The ________ is important for transporting absorbed
nutrients from the GI tract to the liver. ✓ ✓ ...... ANSWER
....... hepatic portal vein
Which of the following is not a function of cholecystokinin?
✓ ✓ ...... ANSWER ....... Control the secretion of mucus
by the mucus cells
The process of digesting food begins in the ✓ ✓ ......
ANSWER ....... mouth
Risk factors for constipation include all of the following
except ✓ ✓ ...... ANSWER ....... drinking too much
water
