DHN 101 EXAM 1 - HUMAN NUTRITION AND WELLNESS
NEWEST 2026/2027 EXAM COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) WITH RATIONALES
|ALREADY GRADED A+||LATEST UPDATE!!
UNIVERSITY OF KENTUCKY
CONTENTS
Section 1: Foundations of Nutrition (Q1–50)
Section 2: Dietary Guidelines & Nutrient Recommendations (Q51–80)
Section 3: Digestion, Absorption & Metabolism (Q81–115)
Section 4: Carbohydrates (Q116–165)
Section 5: Lipids (Fats) (Q166–215)
Section 6: Proteins (Q216–265)
Section 7: Energy Balance & Metabolism (Q266–300)
SECTION 1: FOUNDATIONS OF NUTRITION (Questions 1–50)
QUESTION 1
Which of the following is the BEST definition of nutrition?
A) The study of food processing techniques
B) The science of how living organisms obtain and use food for growth,
maintenance, and energy
C) The study of food marketing and distribution
D) The practice of cooking and meal preparation only
Answer: B
Rationale: Nutrition is the science that encompasses the ingestion, digestion,
absorption, metabolism, and excretion of nutrients. It studies how living
organisms obtain and utilize food for growth, maintenance, and energy. It is not
limited to cooking, processing, or marketing.
QUESTION 2
Which of the following is the BEST definition of an essential nutrient?
A) A nutrient that is found only in animal-based foods
B) A nutrient that provides more than 4 calories per gram
C) A nutrient that can be manufactured by the body in large quantities
1
,D) A nutrient that must be obtained from food because the body cannot make it
at all or in sufficient amounts
Answer: D
Rationale: By definition, an essential nutrient cannot be synthesized by the body
(or is made in inadequate amounts), so it must be supplied through the diet to
prevent deficiency. Essential nutrients include certain amino acids, fatty acids,
vitamins, minerals, and water.
QUESTION 3
The six classes of nutrients include:
A) Carbohydrates, proteins, fats, vitamins, minerals, water
B) Carbohydrates, proteins, fats, sugars, starches, water
C) Vitamins, minerals, herbs, spices, water, air
D) Only macronutrients: carbohydrates, proteins, and fats
Answer: A
Rationale: The six classes of nutrients are carbohydrates, proteins, fats (lipids),
vitamins, minerals, and water. These are divided into macronutrients
(carbohydrates, proteins, fats) and micronutrients (vitamins, minerals). Water is
sometimes classified separately.
QUESTION 4
Which of the following nutrients is a micronutrient?
A) Protein
B) Fat
C) Magnesium
D) Carbohydrate
Answer: C
Rationale: Micronutrients are nutrients required in small amounts and include
vitamins and minerals. Magnesium is a mineral, making it a micronutrient.
Protein, fat, and carbohydrates are macronutrients required in larger amounts.
2
,QUESTION 5
Which of the following is a macronutrient?
A) Vitamin C
B) Iron
C) Protein
D) Vitamin D
Answer: C
Rationale: Macronutrients are required in large amounts and include
carbohydrates, proteins, and fats. Vitamins and minerals (including iron, vitamin
C, and vitamin D) are micronutrients, needed only in small amounts.
QUESTION 6
How many calories per gram does carbohydrate provide?
A) 2
B) 4
C) 7
D) 9
Answer: B
Rationale: Carbohydrates provide 4 kilocalories (calories) per gram. Protein also
provides 4 kcal/g, fat provides 9 kcal/g, and alcohol provides 7 kcal/g.
QUESTION 7
How many calories per gram does protein provide?
A) 2
B) 4
C) 7
D) 9
Answer: B
Rationale: Proteins provide 4 kilocalories per gram, the same as carbohydrates.
Fat is more energy-dense at 9 kcal/g, and alcohol provides 7 kcal/g but is not
considered a nutrient.
3
, QUESTION 8
How many calories per gram does fat provide?
A) 2
B) 4
C) 7
D) 9
Answer: D
Rationale: Fats (lipids) are the most energy-dense macronutrient, providing 9
kilocalories per gram. This makes them an efficient energy storage form in the
body.
QUESTION 9
How many calories per gram does alcohol provide?
A) 2
B) 4
C) 7
D) 9
Answer: C
Rationale: Alcohol provides 7 kilocalories per gram, but it is not classified as a
nutrient because it does not support growth, repair, or maintenance of body
tissues. It provides "empty calories."
QUESTION 10
Which of the following is NOT a function of nutrients in the body?
A) Provide energy
B) Regulate body processes
C) Promote growth and repair
D) Replace medications
Answer: D
Rationale: Nutrients provide energy, regulate body processes (e.g., enzymes,
hormones), and promote growth and repair of tissues. They do not replace
medications, though some nutrients may support medical therapies.
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NEWEST 2026/2027 EXAM COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) WITH RATIONALES
|ALREADY GRADED A+||LATEST UPDATE!!
UNIVERSITY OF KENTUCKY
CONTENTS
Section 1: Foundations of Nutrition (Q1–50)
Section 2: Dietary Guidelines & Nutrient Recommendations (Q51–80)
Section 3: Digestion, Absorption & Metabolism (Q81–115)
Section 4: Carbohydrates (Q116–165)
Section 5: Lipids (Fats) (Q166–215)
Section 6: Proteins (Q216–265)
Section 7: Energy Balance & Metabolism (Q266–300)
SECTION 1: FOUNDATIONS OF NUTRITION (Questions 1–50)
QUESTION 1
Which of the following is the BEST definition of nutrition?
A) The study of food processing techniques
B) The science of how living organisms obtain and use food for growth,
maintenance, and energy
C) The study of food marketing and distribution
D) The practice of cooking and meal preparation only
Answer: B
Rationale: Nutrition is the science that encompasses the ingestion, digestion,
absorption, metabolism, and excretion of nutrients. It studies how living
organisms obtain and utilize food for growth, maintenance, and energy. It is not
limited to cooking, processing, or marketing.
QUESTION 2
Which of the following is the BEST definition of an essential nutrient?
A) A nutrient that is found only in animal-based foods
B) A nutrient that provides more than 4 calories per gram
C) A nutrient that can be manufactured by the body in large quantities
1
,D) A nutrient that must be obtained from food because the body cannot make it
at all or in sufficient amounts
Answer: D
Rationale: By definition, an essential nutrient cannot be synthesized by the body
(or is made in inadequate amounts), so it must be supplied through the diet to
prevent deficiency. Essential nutrients include certain amino acids, fatty acids,
vitamins, minerals, and water.
QUESTION 3
The six classes of nutrients include:
A) Carbohydrates, proteins, fats, vitamins, minerals, water
B) Carbohydrates, proteins, fats, sugars, starches, water
C) Vitamins, minerals, herbs, spices, water, air
D) Only macronutrients: carbohydrates, proteins, and fats
Answer: A
Rationale: The six classes of nutrients are carbohydrates, proteins, fats (lipids),
vitamins, minerals, and water. These are divided into macronutrients
(carbohydrates, proteins, fats) and micronutrients (vitamins, minerals). Water is
sometimes classified separately.
QUESTION 4
Which of the following nutrients is a micronutrient?
A) Protein
B) Fat
C) Magnesium
D) Carbohydrate
Answer: C
Rationale: Micronutrients are nutrients required in small amounts and include
vitamins and minerals. Magnesium is a mineral, making it a micronutrient.
Protein, fat, and carbohydrates are macronutrients required in larger amounts.
2
,QUESTION 5
Which of the following is a macronutrient?
A) Vitamin C
B) Iron
C) Protein
D) Vitamin D
Answer: C
Rationale: Macronutrients are required in large amounts and include
carbohydrates, proteins, and fats. Vitamins and minerals (including iron, vitamin
C, and vitamin D) are micronutrients, needed only in small amounts.
QUESTION 6
How many calories per gram does carbohydrate provide?
A) 2
B) 4
C) 7
D) 9
Answer: B
Rationale: Carbohydrates provide 4 kilocalories (calories) per gram. Protein also
provides 4 kcal/g, fat provides 9 kcal/g, and alcohol provides 7 kcal/g.
QUESTION 7
How many calories per gram does protein provide?
A) 2
B) 4
C) 7
D) 9
Answer: B
Rationale: Proteins provide 4 kilocalories per gram, the same as carbohydrates.
Fat is more energy-dense at 9 kcal/g, and alcohol provides 7 kcal/g but is not
considered a nutrient.
3
, QUESTION 8
How many calories per gram does fat provide?
A) 2
B) 4
C) 7
D) 9
Answer: D
Rationale: Fats (lipids) are the most energy-dense macronutrient, providing 9
kilocalories per gram. This makes them an efficient energy storage form in the
body.
QUESTION 9
How many calories per gram does alcohol provide?
A) 2
B) 4
C) 7
D) 9
Answer: C
Rationale: Alcohol provides 7 kilocalories per gram, but it is not classified as a
nutrient because it does not support growth, repair, or maintenance of body
tissues. It provides "empty calories."
QUESTION 10
Which of the following is NOT a function of nutrients in the body?
A) Provide energy
B) Regulate body processes
C) Promote growth and repair
D) Replace medications
Answer: D
Rationale: Nutrients provide energy, regulate body processes (e.g., enzymes,
hormones), and promote growth and repair of tissues. They do not replace
medications, though some nutrients may support medical therapies.
4
