BIOL 1322 FINAL EXAM PRACTICE QUESTIONS COMPLETE WITH 100%
VERIFIED ANSWERS AND RATIONALES
1. What is the definition of nutrition?
A) The study of how food tastes and is prepared
B) The science that studies how nutrients and compounds in foods
nourish and affect body functions and health
C) The process of cooking and preserving food
D) The study of agricultural food production
Correct Answer: B
Rationale: Nutrition is defined as the science that studies how nutrients
and compounds in foods nourish and affect body functions and health.
2. How many classes of nutrients are essential for human health?
A) Four
B) Five
C) Six
D) Seven
Correct Answer: C
Rationale: The six classes of essential nutrients are carbohydrates, fats
(lipids), proteins, vitamins, minerals, and water.
3. Which of the following nutrients are classified as macronutrients?
A) Vitamins and minerals
,B) Carbohydrates, fats, and protein
C) Water and vitamins
D) Minerals and water
Correct Answer: B
Rationale: Macronutrients are required in gram amounts per day and
include carbohydrates, fats, and protein. Micronutrients (vitamins and
minerals) are required in milligram or microgram amounts.
4. Which nutrients yield energy and how much energy per gram does
carbohydrate provide?
A) 2 kcal per gram
B) 4 kcal per gram
C) 7 kcal per gram
D) 9 kcal per gram
Correct Answer: B
Rationale: Carbohydrate provides 4 kcal per gram, protein provides 4
kcal per gram, fat provides 9 kcal per gram, and alcohol provides 7 kcal
per gram (non-nutrient).
5. One gram of fat yields how many calories?
A) 4 calories
B) 7 calories
C) 9 calories
D) 11 calories
,Correct Answer: C
Rationale: Fat is the most energy-dense macronutrient, providing 9
calories per gram.
6. One gram of protein yields how many calories?
A) 2 calories
B) 4 calories
C) 7 calories
D) 9 calories
Correct Answer: B
Rationale: Protein provides 4 calories per gram, the same as
carbohydrate.
7. Alcohol provides how many calories per gram?
A) 4 calories
B) 7 calories
C) 9 calories
D) 0 calories
Correct Answer: B
Rationale: Alcohol is not a nutrient but provides 7 kcal per gram.
8. Which of the following is a micronutrient?
A) Carbohydrate
B) Protein
, C) Vitamin C
D) Fat
Correct Answer: C
Rationale: Vitamins and minerals are micronutrients required in
milligram or microgram amounts and do not yield energy.
9. Which of the following is NOT an energy-yielding nutrient?
A) Carbohydrate
B) Protein
C) Fat
D) Vitamin
Correct Answer: D
Rationale: Vitamins do not provide energy (calories). The energy-
yielding nutrients are carbohydrates, proteins, and fats.
10. What is the Acceptable Macronutrient Distribution Range (AMDR)
for protein?
A) 5 to 15 percent of calories
B) 10 to 35 percent of calories
C) 20 to 40 percent of calories
D) 45 to 65 percent of calories
Correct Answer: B
Rationale: According to the DRI, 10 to 35 percent of calories in a
balanced diet should come from protein.
VERIFIED ANSWERS AND RATIONALES
1. What is the definition of nutrition?
A) The study of how food tastes and is prepared
B) The science that studies how nutrients and compounds in foods
nourish and affect body functions and health
C) The process of cooking and preserving food
D) The study of agricultural food production
Correct Answer: B
Rationale: Nutrition is defined as the science that studies how nutrients
and compounds in foods nourish and affect body functions and health.
2. How many classes of nutrients are essential for human health?
A) Four
B) Five
C) Six
D) Seven
Correct Answer: C
Rationale: The six classes of essential nutrients are carbohydrates, fats
(lipids), proteins, vitamins, minerals, and water.
3. Which of the following nutrients are classified as macronutrients?
A) Vitamins and minerals
,B) Carbohydrates, fats, and protein
C) Water and vitamins
D) Minerals and water
Correct Answer: B
Rationale: Macronutrients are required in gram amounts per day and
include carbohydrates, fats, and protein. Micronutrients (vitamins and
minerals) are required in milligram or microgram amounts.
4. Which nutrients yield energy and how much energy per gram does
carbohydrate provide?
A) 2 kcal per gram
B) 4 kcal per gram
C) 7 kcal per gram
D) 9 kcal per gram
Correct Answer: B
Rationale: Carbohydrate provides 4 kcal per gram, protein provides 4
kcal per gram, fat provides 9 kcal per gram, and alcohol provides 7 kcal
per gram (non-nutrient).
5. One gram of fat yields how many calories?
A) 4 calories
B) 7 calories
C) 9 calories
D) 11 calories
,Correct Answer: C
Rationale: Fat is the most energy-dense macronutrient, providing 9
calories per gram.
6. One gram of protein yields how many calories?
A) 2 calories
B) 4 calories
C) 7 calories
D) 9 calories
Correct Answer: B
Rationale: Protein provides 4 calories per gram, the same as
carbohydrate.
7. Alcohol provides how many calories per gram?
A) 4 calories
B) 7 calories
C) 9 calories
D) 0 calories
Correct Answer: B
Rationale: Alcohol is not a nutrient but provides 7 kcal per gram.
8. Which of the following is a micronutrient?
A) Carbohydrate
B) Protein
, C) Vitamin C
D) Fat
Correct Answer: C
Rationale: Vitamins and minerals are micronutrients required in
milligram or microgram amounts and do not yield energy.
9. Which of the following is NOT an energy-yielding nutrient?
A) Carbohydrate
B) Protein
C) Fat
D) Vitamin
Correct Answer: D
Rationale: Vitamins do not provide energy (calories). The energy-
yielding nutrients are carbohydrates, proteins, and fats.
10. What is the Acceptable Macronutrient Distribution Range (AMDR)
for protein?
A) 5 to 15 percent of calories
B) 10 to 35 percent of calories
C) 20 to 40 percent of calories
D) 45 to 65 percent of calories
Correct Answer: B
Rationale: According to the DRI, 10 to 35 percent of calories in a
balanced diet should come from protein.
