BIOD 121 Module 1 Exam 1 (2025)
comprehensive Questions and verified
Answers (detailed & elaborated) with
Rationales ACTUAL EXAM 2025 TEST!!
Multiple Choice Questions
1. Which of the following is NOT considered a nutrient?
A. Carbohydrate
B. Water
C. Alcohol
D. Protein
Answer: C. Alcohol
Rationale: Alcohol provides energy (7 kcal/g) but is not considered a
nutrient because it is not required for normal body functioning.
2. Which nutrient class provides the most energy per gram?
A. Carbohydrates
B. Proteins
C. Fats
D. Vitamins
Answer: C. Fats
Rationale: Fats provide 9 kcal/g, while carbohydrates and proteins
each provide 4 kcal/g. Vitamins provide no energy.
3. Which of the following is a micronutrient?
,A. Protein
B. Fat
C. Vitamin C
D. Carbohydrate
Answer: C. Vitamin C
Rationale: Micronutrients include vitamins and minerals, which are
needed in smaller amounts than macronutrients.
4. The main function of carbohydrates is to:
A. Build and repair tissues
B. Provide energy
C. Promote bone health
D. Act as enzymes
Answer: B. Provide energy
Rationale: Carbohydrates are the body’s primary energy source.
5. Which organ is primarily responsible for nutrient absorption?
A. Stomach
B. Liver
C. Small intestine
D. Large intestine
Answer: C. Small intestine
Rationale: Most digestion and absorption occur in the small intestine
due to its large surface area.
6. Which macronutrient plays a key role in building muscle tissue?
A. Carbohydrate
B. Protein
C. Fat
D. Water
Answer: B. Protein
, Rationale: Proteins supply amino acids necessary for muscle and
tissue repair and growth.
7. Which of the following is considered an essential nutrient?
A. Fiber
B. Water
C. Alcohol
D. Cholesterol
Answer: B. Water
Rationale: Water is essential because it is required for vital bodily
functions and must be consumed in the diet.
8. What is the term for the process of breaking down food into smaller
components?
A. Absorption
B. Digestion
C. Ingestion
D. Excretion
Answer: B. Digestion
Rationale: Digestion is the breakdown of food into nutrients the body
can absorb.
9. Which dietary reference value meets the needs of 97–98% of healthy
individuals?
A. UL
B. EAR
C. RDA
D. AI
Answer: C. RDA
Rationale: The Recommended Dietary Allowance (RDA) is designed to
meet the needs of nearly all healthy individuals.
comprehensive Questions and verified
Answers (detailed & elaborated) with
Rationales ACTUAL EXAM 2025 TEST!!
Multiple Choice Questions
1. Which of the following is NOT considered a nutrient?
A. Carbohydrate
B. Water
C. Alcohol
D. Protein
Answer: C. Alcohol
Rationale: Alcohol provides energy (7 kcal/g) but is not considered a
nutrient because it is not required for normal body functioning.
2. Which nutrient class provides the most energy per gram?
A. Carbohydrates
B. Proteins
C. Fats
D. Vitamins
Answer: C. Fats
Rationale: Fats provide 9 kcal/g, while carbohydrates and proteins
each provide 4 kcal/g. Vitamins provide no energy.
3. Which of the following is a micronutrient?
,A. Protein
B. Fat
C. Vitamin C
D. Carbohydrate
Answer: C. Vitamin C
Rationale: Micronutrients include vitamins and minerals, which are
needed in smaller amounts than macronutrients.
4. The main function of carbohydrates is to:
A. Build and repair tissues
B. Provide energy
C. Promote bone health
D. Act as enzymes
Answer: B. Provide energy
Rationale: Carbohydrates are the body’s primary energy source.
5. Which organ is primarily responsible for nutrient absorption?
A. Stomach
B. Liver
C. Small intestine
D. Large intestine
Answer: C. Small intestine
Rationale: Most digestion and absorption occur in the small intestine
due to its large surface area.
6. Which macronutrient plays a key role in building muscle tissue?
A. Carbohydrate
B. Protein
C. Fat
D. Water
Answer: B. Protein
, Rationale: Proteins supply amino acids necessary for muscle and
tissue repair and growth.
7. Which of the following is considered an essential nutrient?
A. Fiber
B. Water
C. Alcohol
D. Cholesterol
Answer: B. Water
Rationale: Water is essential because it is required for vital bodily
functions and must be consumed in the diet.
8. What is the term for the process of breaking down food into smaller
components?
A. Absorption
B. Digestion
C. Ingestion
D. Excretion
Answer: B. Digestion
Rationale: Digestion is the breakdown of food into nutrients the body
can absorb.
9. Which dietary reference value meets the needs of 97–98% of healthy
individuals?
A. UL
B. EAR
C. RDA
D. AI
Answer: C. RDA
Rationale: The Recommended Dietary Allowance (RDA) is designed to
meet the needs of nearly all healthy individuals.
