DH 209 NUTRITION MIDTERM REVIEW STUDY
GUIDE EXAM 161 QUESTIONS WITH VERIFIED
ANSWERS 2026
nutrient - CORRECT ANSWER A biochemical substance obtained from food and
used by the body for growth, maintenance and repair
essential nutrients - CORRECT ANSWER substance that the body cannot make at
all or in adequate quantities; must be obtained from an outside source.
our bodies can make them - CORRECT ANSWER non-essential nutrients
kilocalorie - CORRECT ANSWER measure of energy in food used by the body to
work and generate heat (Common practice is to use "calorie" to mean the same
thing)
nutrient density - CORRECT ANSWER nutrients a food provides relative to the
calories it provides
organic - CORRECT ANSWER Have carbon-carbon or carbon-hydrogen bonds and
are labeled as...
(ex: carbohydrates, lipids, protein,vitamins)
inorganic - CORRECT ANSWER do not have carbon bonds and are...
(ex: minerals and water)
,Dietary Reference Intake
(has replaced RDA and includes EAR, UL, and AI) - CORRECT ANSWER DRI
estimated average requirement-level estimated to meet 50% of people - CORRECT
ANSWER EAR
Adequate Intake - CORRECT ANSWER What does AI stand for in nutrition?
When there is not enough data to set EAR; used for infants and other age groups
for certain nutrients like calcium, vitamin D, fluoride, pantothenic acid, biotin, and
choline - CORRECT ANSWER When is AI used in nutrition recommendations?
daily values; reference values developed specifically for use on food labels -
CORRECT ANSWER DV
recommended dietary allowances (designed to cover needs of healthy people) -
CORRECT ANSWER RDA
gastrointestinal tract - CORRECT ANSWER 30 feet long, includes the: mouth,
esophagus, stomach, small intestine, and large intestine (colon)
mastication; salivary amylase breaks down starches here - CORRECT ANSWER
mouth function
, stomach - CORRECT ANSWER holding tank; secretes HCL acid, enzymes and fluid;
intrinsic factor is secreted and attaches to vitamin B12 w/ facilitates its absorption
in the small intestine
10 feet long - CORRECT ANSWER How long is the small intestine?
Digestion of CHO and protein, digestion of lipids, and nutrient absorption -
CORRECT ANSWER What is the main function of the small intestine?
Villi and microvilli - CORRECT ANSWER What lines the small intestine to increase
surface area?
duodenum, jejunum, ileum - CORRECT ANSWER small intestine contains..
5 feet - CORRECT ANSWER What is the length of the large intestine?
Water, some minerals, and undigested residues - CORRECT ANSWER What
substances pass into the large intestine?
Water, electrolytes, and bile salts - CORRECT ANSWER What is absorbed in the
large intestine?
liver, gallbladder, pancreas - CORRECT ANSWER Accessory organs involved w/
digestion:
GUIDE EXAM 161 QUESTIONS WITH VERIFIED
ANSWERS 2026
nutrient - CORRECT ANSWER A biochemical substance obtained from food and
used by the body for growth, maintenance and repair
essential nutrients - CORRECT ANSWER substance that the body cannot make at
all or in adequate quantities; must be obtained from an outside source.
our bodies can make them - CORRECT ANSWER non-essential nutrients
kilocalorie - CORRECT ANSWER measure of energy in food used by the body to
work and generate heat (Common practice is to use "calorie" to mean the same
thing)
nutrient density - CORRECT ANSWER nutrients a food provides relative to the
calories it provides
organic - CORRECT ANSWER Have carbon-carbon or carbon-hydrogen bonds and
are labeled as...
(ex: carbohydrates, lipids, protein,vitamins)
inorganic - CORRECT ANSWER do not have carbon bonds and are...
(ex: minerals and water)
,Dietary Reference Intake
(has replaced RDA and includes EAR, UL, and AI) - CORRECT ANSWER DRI
estimated average requirement-level estimated to meet 50% of people - CORRECT
ANSWER EAR
Adequate Intake - CORRECT ANSWER What does AI stand for in nutrition?
When there is not enough data to set EAR; used for infants and other age groups
for certain nutrients like calcium, vitamin D, fluoride, pantothenic acid, biotin, and
choline - CORRECT ANSWER When is AI used in nutrition recommendations?
daily values; reference values developed specifically for use on food labels -
CORRECT ANSWER DV
recommended dietary allowances (designed to cover needs of healthy people) -
CORRECT ANSWER RDA
gastrointestinal tract - CORRECT ANSWER 30 feet long, includes the: mouth,
esophagus, stomach, small intestine, and large intestine (colon)
mastication; salivary amylase breaks down starches here - CORRECT ANSWER
mouth function
, stomach - CORRECT ANSWER holding tank; secretes HCL acid, enzymes and fluid;
intrinsic factor is secreted and attaches to vitamin B12 w/ facilitates its absorption
in the small intestine
10 feet long - CORRECT ANSWER How long is the small intestine?
Digestion of CHO and protein, digestion of lipids, and nutrient absorption -
CORRECT ANSWER What is the main function of the small intestine?
Villi and microvilli - CORRECT ANSWER What lines the small intestine to increase
surface area?
duodenum, jejunum, ileum - CORRECT ANSWER small intestine contains..
5 feet - CORRECT ANSWER What is the length of the large intestine?
Water, some minerals, and undigested residues - CORRECT ANSWER What
substances pass into the large intestine?
Water, electrolytes, and bile salts - CORRECT ANSWER What is absorbed in the
large intestine?
liver, gallbladder, pancreas - CORRECT ANSWER Accessory organs involved w/
digestion:
