1 Inquire through: | Professional | Confidential Support
Nutrition Exam 1 Questions and Answers (100%
Correct Answers)
1. Name the six classes of nutrients and their major functions!
Ans: a. Carbohydrates- Provides energy
b. Lipids (fats)- highest caloric value of energy
c. Proteins- helps to restore muscle fibers as well as regulate digestion and energy
metabolism.
d. Vitamins- facilitate the release of energy from carbs, fat, and protein. Each of the
13 vitamins has its own special role to play.
e. Minerals- found in bones and teeth and are also found in the fluids of the body.
f. Water
2. What is an essential nutrient? Explain why alcohol is not considered a nutrient
Ans: a. An essential nutrient is a nutrient a person must obtain from food because
the body cannot make it for itself in sufficient quantity to meet physiological needs;
also called indispensable nutrients. Alcohol in not considered a nutrient because it
does not support life. In fact, it interferes with the growth, maintenance, and repair
of the body.
Given a specific food, calculate the energy contribution (kcalories) from protein,
fat and carbohydrate.!
Ans: • 1 gram carbohydrate= 4 Kcal
• 1 gram protein= 4 Kcal
• 1 gram fat= 9 Kcal
hat credentials identify a "nutrition expert"?
Ans: a. The person has an undergraduate degree requiring about 60 credit hours in
nutrition, food science, and other related subjects; complete a year's clinical
internship or the equivalent; pass a national examination administered by the
academy of nutrition and Dietetics; and maintain up to date knowledge and
registration by participating in required continuing education activities
4. What do the terms DV, DRI, AI, RDA and UL represent? To whom do these
recommendation apply?
Ans: a. DV= Daily Value
, 2 Inquire through: | Professional | Confidential Support
b. DRI= Dietary Reference Intake- recommendations that produce a set of standards
that define the amounts of energy, nutrients, other dietary components, and physical
activity that best support health.
c. AI= Adequate Intakes- reflects the average amount of a nutrient that a group of
healthy people consumes.
d. RDA= Recommended Dietary Allowances- recommended nutrient intake for
everybody.
e. UL= Tolerable Upper Intake Levels- the point at which too much nutrient intake can
become toxic.
• Healthy individuals
5. Diagram and explain the "ChooseMyPlate" food guide logo. Summarize the major
recommendations for eating. How many servings of whole grains are recommended
each day?
Ans: a. The my plate logo divides a plate into four sections, each representing a
food group-Fruits, vegetables, grains, and protein. The sections vary in size,
indicating relative proportion each food group contributes to a healthy diet. At least
half of the grain intake should be whole grains. The daily recommendation is 6 0z so
3oz of whole grains.
6. Trace the major steps of digestion and their function. Where is the major site of
nutrient digestion/absorption?
Ans: a. 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.
b. 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.
c. The stomach retains the bolus for a while in its upper portion. Little by litte, the
stomach transifers the food to its lower portion, adds juices to it, and grinds it to a
semiliquid mass called chyme. It then releases small amounts of chyme into the
small intestine.
d. The small intestine is where nutrient absorption takes place.
e. Large intestine withdraws water from the chyme, making excretion easier.
7. Name the digestive enzymes that breakdown carbohydrates, proteins and lipids.
Ans: a. Carbohydrase- breaks down carbohydrates.
Nutrition Exam 1 Questions and Answers (100%
Correct Answers)
1. Name the six classes of nutrients and their major functions!
Ans: a. Carbohydrates- Provides energy
b. Lipids (fats)- highest caloric value of energy
c. Proteins- helps to restore muscle fibers as well as regulate digestion and energy
metabolism.
d. Vitamins- facilitate the release of energy from carbs, fat, and protein. Each of the
13 vitamins has its own special role to play.
e. Minerals- found in bones and teeth and are also found in the fluids of the body.
f. Water
2. What is an essential nutrient? Explain why alcohol is not considered a nutrient
Ans: a. An essential nutrient is a nutrient a person must obtain from food because
the body cannot make it for itself in sufficient quantity to meet physiological needs;
also called indispensable nutrients. Alcohol in not considered a nutrient because it
does not support life. In fact, it interferes with the growth, maintenance, and repair
of the body.
Given a specific food, calculate the energy contribution (kcalories) from protein,
fat and carbohydrate.!
Ans: • 1 gram carbohydrate= 4 Kcal
• 1 gram protein= 4 Kcal
• 1 gram fat= 9 Kcal
hat credentials identify a "nutrition expert"?
Ans: a. The person has an undergraduate degree requiring about 60 credit hours in
nutrition, food science, and other related subjects; complete a year's clinical
internship or the equivalent; pass a national examination administered by the
academy of nutrition and Dietetics; and maintain up to date knowledge and
registration by participating in required continuing education activities
4. What do the terms DV, DRI, AI, RDA and UL represent? To whom do these
recommendation apply?
Ans: a. DV= Daily Value
, 2 Inquire through: | Professional | Confidential Support
b. DRI= Dietary Reference Intake- recommendations that produce a set of standards
that define the amounts of energy, nutrients, other dietary components, and physical
activity that best support health.
c. AI= Adequate Intakes- reflects the average amount of a nutrient that a group of
healthy people consumes.
d. RDA= Recommended Dietary Allowances- recommended nutrient intake for
everybody.
e. UL= Tolerable Upper Intake Levels- the point at which too much nutrient intake can
become toxic.
• Healthy individuals
5. Diagram and explain the "ChooseMyPlate" food guide logo. Summarize the major
recommendations for eating. How many servings of whole grains are recommended
each day?
Ans: a. The my plate logo divides a plate into four sections, each representing a
food group-Fruits, vegetables, grains, and protein. The sections vary in size,
indicating relative proportion each food group contributes to a healthy diet. At least
half of the grain intake should be whole grains. The daily recommendation is 6 0z so
3oz of whole grains.
6. Trace the major steps of digestion and their function. Where is the major site of
nutrient digestion/absorption?
Ans: a. 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.
b. 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.
c. The stomach retains the bolus for a while in its upper portion. Little by litte, the
stomach transifers the food to its lower portion, adds juices to it, and grinds it to a
semiliquid mass called chyme. It then releases small amounts of chyme into the
small intestine.
d. The small intestine is where nutrient absorption takes place.
e. Large intestine withdraws water from the chyme, making excretion easier.
7. Name the digestive enzymes that breakdown carbohydrates, proteins and lipids.
Ans: a. Carbohydrase- breaks down carbohydrates.
