Principles of Nutrition Exam 1 Quiz Bank –
NUR1172 / NUR 1172 – Rasmussen College
(2025/2026) | Verified Questions and Correct
Answers
Instructions: This quiz bank contains 50 multiple-choice questions covering foundational
nutrition principles, macronutrients, micronutrients, digestion, and dietary guidelines. Each
question includes four answer choices, the correct answer in RED, and a detailed rationale
explaining why the correct answer is right and why the others are incorrect. Questions are
separated by horizontal lines for clarity.
Question 1
What is the primary function of carbohydrates in the body?
A. Energy storage
B. Structural support
C. Hormone production
D. Immune response
Correct Answer: A. Energy storage
Rationale: Carbohydrates are the body's preferred source of energy, providing 4 kcal/g and
stored as glycogen. Structural support (B) is protein's role, hormone production (C) involves
lipids and proteins, and immune response (D) is antibody-related (protein).
Question 2
Which nutrient is the most concentrated source of energy?
A. Carbohydrates
B. Proteins
C. Fats
D. Vitamins
Correct Answer: C. Fats
Rationale: Fats provide 9 kcal/g, making them the most energy-dense nutrient. Carbohydrates
and proteins provide 4 kcal/g, and vitamins (D) provide no calories.
Question 3
What is the recommended daily intake of water for adults?
A. 1–2 liters
B. 2–3 liters
, C. 3–4 liters
D. 4–5 liters
Correct Answer: B. 2–3 liters
Rationale: Adults require 2–3 liters of water daily for hydration and metabolic functions. Less
(A) risks dehydration, more (C, D) unnecessary unless active.
Question 4
Which vitamin is essential for blood clotting?
A. Vitamin A
B. Vitamin C
C. Vitamin K
D. Vitamin D
Correct Answer: C. Vitamin K
Rationale: Vitamin K is required for coagulation factors. Vitamin A (A) for vision, C (B) for
collagen, and D (D) for bone health.
Question 5
What is the function of fiber in the diet?
A. Provides energy
B. Aids digestion
C. Builds muscle
D. Transports oxygen
Correct Answer: B. Aids digestion
Rationale: Fiber promotes bowel regularity and prevents constipation. It provides no energy (A),
does not build muscle (C), or transport oxygen (D).
Question 6
Which mineral is essential for thyroid hormone production?
A. Iron
B. Calcium
C. Iodine
D. Potassium
Correct Answer: C. Iodine
Rationale: Iodine is a component of thyroid hormones. Iron (A) for hemoglobin, calcium (B) for
bones, and potassium (D) for fluid balance.
Question 7
What is the Acceptable Macronutrient Distribution Range (AMDR) for carbohydrates?
NUR1172 / NUR 1172 – Rasmussen College
(2025/2026) | Verified Questions and Correct
Answers
Instructions: This quiz bank contains 50 multiple-choice questions covering foundational
nutrition principles, macronutrients, micronutrients, digestion, and dietary guidelines. Each
question includes four answer choices, the correct answer in RED, and a detailed rationale
explaining why the correct answer is right and why the others are incorrect. Questions are
separated by horizontal lines for clarity.
Question 1
What is the primary function of carbohydrates in the body?
A. Energy storage
B. Structural support
C. Hormone production
D. Immune response
Correct Answer: A. Energy storage
Rationale: Carbohydrates are the body's preferred source of energy, providing 4 kcal/g and
stored as glycogen. Structural support (B) is protein's role, hormone production (C) involves
lipids and proteins, and immune response (D) is antibody-related (protein).
Question 2
Which nutrient is the most concentrated source of energy?
A. Carbohydrates
B. Proteins
C. Fats
D. Vitamins
Correct Answer: C. Fats
Rationale: Fats provide 9 kcal/g, making them the most energy-dense nutrient. Carbohydrates
and proteins provide 4 kcal/g, and vitamins (D) provide no calories.
Question 3
What is the recommended daily intake of water for adults?
A. 1–2 liters
B. 2–3 liters
, C. 3–4 liters
D. 4–5 liters
Correct Answer: B. 2–3 liters
Rationale: Adults require 2–3 liters of water daily for hydration and metabolic functions. Less
(A) risks dehydration, more (C, D) unnecessary unless active.
Question 4
Which vitamin is essential for blood clotting?
A. Vitamin A
B. Vitamin C
C. Vitamin K
D. Vitamin D
Correct Answer: C. Vitamin K
Rationale: Vitamin K is required for coagulation factors. Vitamin A (A) for vision, C (B) for
collagen, and D (D) for bone health.
Question 5
What is the function of fiber in the diet?
A. Provides energy
B. Aids digestion
C. Builds muscle
D. Transports oxygen
Correct Answer: B. Aids digestion
Rationale: Fiber promotes bowel regularity and prevents constipation. It provides no energy (A),
does not build muscle (C), or transport oxygen (D).
Question 6
Which mineral is essential for thyroid hormone production?
A. Iron
B. Calcium
C. Iodine
D. Potassium
Correct Answer: C. Iodine
Rationale: Iodine is a component of thyroid hormones. Iron (A) for hemoglobin, calcium (B) for
bones, and potassium (D) for fluid balance.
Question 7
What is the Acceptable Macronutrient Distribution Range (AMDR) for carbohydrates?
