DHN 101 EXAM 1, 2, AND 3 (ACTUAL EXAMS 2026)
| HUMAN NUTRITION AND WELLNESS (LATEST)
|| MOST RECENT EXAM 2026|2027 ACTUAL
COMPLETE REAL EXAM QUESTIONS AND
CORRET ANSWERS (VERIFIED ANSWERS)
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What is the primary purpose of nutrition science?
A. To eliminate all dietary fats
B. To study how nutrients and food components affect health and
body function
C. To determine which foods taste best
D. To replace physical activity with dietary supplements
Answer: B. To study how nutrients and food components affect health
and body function
Rationale: Nutrition science examines how food, nutrients, and other
dietary components interact with the body. It includes digestion,
absorption, metabolism, growth, disease prevention, and overall
health. Nutrition is much broader than simply determining which
foods are healthy or unhealthy.
Which of the following is considered an essential nutrient?
,A. Alcohol
B. Dietary fiber only
C. Vitamin C
D. Caffeine
Answer: C. Vitamin C
Rationale: An essential nutrient is a substance the body cannot make
in sufficient amounts and therefore must obtain from the diet.
Vitamins, minerals, certain amino acids, certain fatty acids, and water
are essential nutrients. Alcohol and caffeine are not essential nutrients.
Which group contains the six major classes of nutrients?
A. Protein, sugar, starch, cholesterol, alcohol, and water
B. Carbohydrates, lipids, proteins, vitamins, minerals, and water
C. Vitamins, herbs, supplements, fiber, alcohol, and protein
D. Carbohydrates, enzymes, hormones, water, alcohol, and minerals
Answer: B. Carbohydrates, lipids, proteins, vitamins, minerals, and
water
Rationale: The six recognized classes of nutrients are carbohydrates,
lipids, proteins, vitamins, minerals, and water. Carbohydrates, lipids,
and proteins provide energy, whereas vitamins, minerals, and water
perform numerous regulatory and structural functions.
Which nutrient provides the greatest amount of energy per gram?
,A. Carbohydrate
B. Protein
C. Fat
D. Water
Answer: C. Fat
Rationale: Fat provides approximately 9 kcal per gram, while
carbohydrate and protein provide approximately 4 kcal per gram.
Water provides no calories. The higher energy density of fat makes it
an important energy source, although dietary fat should be consumed
in appropriate amounts and types.
What is the approximate energy value of one gram of carbohydrate?
A. 2 kcal
B. 4 kcal
C. 7 kcal
D. 9 kcal
Answer: B. 4 kcal
Rationale: Carbohydrates provide approximately 4 kilocalories per
gram. Protein also provides about 4 kcal per gram, whereas fat
provides about 9 kcal per gram and alcohol provides about 7 kcal per
gram.
What is the term for the process by which the body obtains nutrients
from food and uses them?
, A. Nutrition
B. Hydration
C. Fermentation
D. Excretion
Answer: A. Nutrition
Rationale: Nutrition encompasses the processes through which
organisms consume food, digest it, absorb nutrients, transport them,
metabolize them, and use them for energy, growth, repair, and
regulation.
Which statement best describes a calorie?
A. A type of vitamin
B. A unit used to measure energy
C. A type of mineral
D. A unit used exclusively to measure body weight
Answer: B. A unit used to measure energy
Rationale: In nutrition, the term calorie generally refers to a
kilocalorie, which is a unit of energy. Food provides energy that the
body can use for physiological functions, physical activity, growth, and
maintenance.
Which organization establishes the Dietary Guidelines for Americans?
| HUMAN NUTRITION AND WELLNESS (LATEST)
|| MOST RECENT EXAM 2026|2027 ACTUAL
COMPLETE REAL EXAM QUESTIONS AND
CORRET ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+ | GUARANTEED
SUCCESS!! | JUST RELEASED!! BRAND
NEW VERSION!
What is the primary purpose of nutrition science?
A. To eliminate all dietary fats
B. To study how nutrients and food components affect health and
body function
C. To determine which foods taste best
D. To replace physical activity with dietary supplements
Answer: B. To study how nutrients and food components affect health
and body function
Rationale: Nutrition science examines how food, nutrients, and other
dietary components interact with the body. It includes digestion,
absorption, metabolism, growth, disease prevention, and overall
health. Nutrition is much broader than simply determining which
foods are healthy or unhealthy.
Which of the following is considered an essential nutrient?
,A. Alcohol
B. Dietary fiber only
C. Vitamin C
D. Caffeine
Answer: C. Vitamin C
Rationale: An essential nutrient is a substance the body cannot make
in sufficient amounts and therefore must obtain from the diet.
Vitamins, minerals, certain amino acids, certain fatty acids, and water
are essential nutrients. Alcohol and caffeine are not essential nutrients.
Which group contains the six major classes of nutrients?
A. Protein, sugar, starch, cholesterol, alcohol, and water
B. Carbohydrates, lipids, proteins, vitamins, minerals, and water
C. Vitamins, herbs, supplements, fiber, alcohol, and protein
D. Carbohydrates, enzymes, hormones, water, alcohol, and minerals
Answer: B. Carbohydrates, lipids, proteins, vitamins, minerals, and
water
Rationale: The six recognized classes of nutrients are carbohydrates,
lipids, proteins, vitamins, minerals, and water. Carbohydrates, lipids,
and proteins provide energy, whereas vitamins, minerals, and water
perform numerous regulatory and structural functions.
Which nutrient provides the greatest amount of energy per gram?
,A. Carbohydrate
B. Protein
C. Fat
D. Water
Answer: C. Fat
Rationale: Fat provides approximately 9 kcal per gram, while
carbohydrate and protein provide approximately 4 kcal per gram.
Water provides no calories. The higher energy density of fat makes it
an important energy source, although dietary fat should be consumed
in appropriate amounts and types.
What is the approximate energy value of one gram of carbohydrate?
A. 2 kcal
B. 4 kcal
C. 7 kcal
D. 9 kcal
Answer: B. 4 kcal
Rationale: Carbohydrates provide approximately 4 kilocalories per
gram. Protein also provides about 4 kcal per gram, whereas fat
provides about 9 kcal per gram and alcohol provides about 7 kcal per
gram.
What is the term for the process by which the body obtains nutrients
from food and uses them?
, A. Nutrition
B. Hydration
C. Fermentation
D. Excretion
Answer: A. Nutrition
Rationale: Nutrition encompasses the processes through which
organisms consume food, digest it, absorb nutrients, transport them,
metabolize them, and use them for energy, growth, repair, and
regulation.
Which statement best describes a calorie?
A. A type of vitamin
B. A unit used to measure energy
C. A type of mineral
D. A unit used exclusively to measure body weight
Answer: B. A unit used to measure energy
Rationale: In nutrition, the term calorie generally refers to a
kilocalorie, which is a unit of energy. Food provides energy that the
body can use for physiological functions, physical activity, growth, and
maintenance.
Which organization establishes the Dietary Guidelines for Americans?
