DIT 121 EXAM 1 2026/2027 – STUDY GUIDE, PRACTICE QUESTIONS, EXAM
REVIEW & TEST PREP
carbohydrates
lipids
proteins
vitamins
minerals
water - correct answer ✔✔Name the six classes of nutrients and their major functions?
provides energy - correct answer ✔✔What is the major functions of Carbohydrates?
highest caloric value of energy - correct answer ✔✔What is the major functions of Lipids (fats)?
helps to restore muscle fibers and regulate digestion and energy metabolism - correct answer ✔✔What
is the major functions of Proteins?
facilitate the release of energy from carbs, fat, and protein - correct answer ✔✔What is the major
functions of Vitamins?
found in bones and teeth and are also found in the fluids of the body - correct answer ✔✔What is the
major functions of Minerals?
carries several minerals and supplies medium for transporting vital materials to cells and carrying waste
away from them - correct answer ✔✔What is the major functions of Water?
a nutrient a person must obtain from food because the body cannot make it for itself in sufficient
quantity - correct answer ✔✔What is an essential nutrient (indispensable nutrients)?
it does not support life, it interferes with the growth, maintenance, and repair of the body - correct
answer ✔✔Explain why alcohol is not considered a nutrient
1 gram carbohydrate= 4 kcal
1 gram protein= 4 kcal
1 gram fat= 9 kcal - correct answer ✔✔Given a specific food, calculate the energy contribution (kcalories)
from protein,
fat and carbohydrate
undergraduate degree
60 credit hours
clinical internship
pass a national examination administered by the academy of nutrition and Dietetics
maintain up to date knowledge and registration - correct answer ✔✔What credentials identify a
"nutrition expert"
daily Value - correct answer ✔✔What is DV?
, dietary Reference Intake - correct answer ✔✔What is DRI?
adequate Intakes - correct answer ✔✔What is AI ?
recommended Dietary Allowances - correct answer ✔✔What is RDA?
tolerable Upper Intake Levels - correct answer ✔✔What is UL?
standards that define the amounts of energy, nutrients, other dietary components, and physical activity
that best support health - correct answer ✔✔What does the term DRI represent?
average amount of a nutrient that a group of healthy people consumes - correct answer ✔✔What does
the term AI represent?
recommended nutrient intake for everybody - correct answer ✔✔What does the term RDA represent?
the point at which too much nutrient intake can become toxic - correct answer ✔✔What does the term
UL represent?
Healthy individuals - correct answer ✔✔To whom do these DV, DRI, AI, RDA and UL recommendation
apply?
four sections on plate representing food group-Fruits, vegetables, grains, and protein.
The sections vary in size, indicating relative proportion each food group contributes to a healthy diet -
correct answer ✔✔Diagram and explain the "ChooseMyPlate" food guide logo. Summarize the major
recommendations for eating
3oz - 6oz or at least half - correct answer ✔✔How many servings of whole grains are recommended each
day?
mouth
esophagus
stomach
small intestine
large intestine - correct answer ✔✔what is the order of the digestion route?
- correct answer ✔✔major functions of digestion
Food enters the mouth and travels down the esophagus and through the upper and lower esophageal
sphincters to the stomach, then though the pyloric sphincter to the small intestine, on through the
ileocecal valve to the large intestine, past the appendix to the rectum, ending at the anus
Mouth- during chewing, teeth crush large pieces of food into smaller ones. Saliva contains carbohydrase,
an enzyme that hydrolyzes carbohydrates. After a mouthful of food has been chewed and swallowed, it
is called a bolus
REVIEW & TEST PREP
carbohydrates
lipids
proteins
vitamins
minerals
water - correct answer ✔✔Name the six classes of nutrients and their major functions?
provides energy - correct answer ✔✔What is the major functions of Carbohydrates?
highest caloric value of energy - correct answer ✔✔What is the major functions of Lipids (fats)?
helps to restore muscle fibers and regulate digestion and energy metabolism - correct answer ✔✔What
is the major functions of Proteins?
facilitate the release of energy from carbs, fat, and protein - correct answer ✔✔What is the major
functions of Vitamins?
found in bones and teeth and are also found in the fluids of the body - correct answer ✔✔What is the
major functions of Minerals?
carries several minerals and supplies medium for transporting vital materials to cells and carrying waste
away from them - correct answer ✔✔What is the major functions of Water?
a nutrient a person must obtain from food because the body cannot make it for itself in sufficient
quantity - correct answer ✔✔What is an essential nutrient (indispensable nutrients)?
it does not support life, it interferes with the growth, maintenance, and repair of the body - correct
answer ✔✔Explain why alcohol is not considered a nutrient
1 gram carbohydrate= 4 kcal
1 gram protein= 4 kcal
1 gram fat= 9 kcal - correct answer ✔✔Given a specific food, calculate the energy contribution (kcalories)
from protein,
fat and carbohydrate
undergraduate degree
60 credit hours
clinical internship
pass a national examination administered by the academy of nutrition and Dietetics
maintain up to date knowledge and registration - correct answer ✔✔What credentials identify a
"nutrition expert"
daily Value - correct answer ✔✔What is DV?
, dietary Reference Intake - correct answer ✔✔What is DRI?
adequate Intakes - correct answer ✔✔What is AI ?
recommended Dietary Allowances - correct answer ✔✔What is RDA?
tolerable Upper Intake Levels - correct answer ✔✔What is UL?
standards that define the amounts of energy, nutrients, other dietary components, and physical activity
that best support health - correct answer ✔✔What does the term DRI represent?
average amount of a nutrient that a group of healthy people consumes - correct answer ✔✔What does
the term AI represent?
recommended nutrient intake for everybody - correct answer ✔✔What does the term RDA represent?
the point at which too much nutrient intake can become toxic - correct answer ✔✔What does the term
UL represent?
Healthy individuals - correct answer ✔✔To whom do these DV, DRI, AI, RDA and UL recommendation
apply?
four sections on plate representing food group-Fruits, vegetables, grains, and protein.
The sections vary in size, indicating relative proportion each food group contributes to a healthy diet -
correct answer ✔✔Diagram and explain the "ChooseMyPlate" food guide logo. Summarize the major
recommendations for eating
3oz - 6oz or at least half - correct answer ✔✔How many servings of whole grains are recommended each
day?
mouth
esophagus
stomach
small intestine
large intestine - correct answer ✔✔what is the order of the digestion route?
- correct answer ✔✔major functions of digestion
Food enters the mouth and travels down the esophagus and through the upper and lower esophageal
sphincters to the stomach, then though the pyloric sphincter to the small intestine, on through the
ileocecal valve to the large intestine, past the appendix to the rectum, ending at the anus
Mouth- during chewing, teeth crush large pieces of food into smaller ones. Saliva contains carbohydrase,
an enzyme that hydrolyzes carbohydrates. After a mouthful of food has been chewed and swallowed, it
is called a bolus
