NUTR 650 EXAM 1 QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A 2026
|INSTANT DOWNLOAD PDF
1. Which of the following are macronutrients essential for
energy production?
A. Carbohydrates
B. Lipids
C. Proteins
D. Vitamins
Correct Answer: A, B, C
Rationale: Macronutrients (carbs, fats, proteins) provide
energy. Vitamins are micronutrients and do not directly supply
energy.
2. What are the main functions of dietary fiber?
A. Promotes satiety
B. Reduces cholesterol absorption
C. Provides energy
D. Regulates bowel movements
Correct Answer: A, B, D
Rationale: Fiber helps in satiety, cholesterol regulation, and
bowel health. It is not a source of calories.
,3. Which vitamins are fat-soluble?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Correct Answer: A, C, D
Rationale: Fat-soluble vitamins (A, D, E, K) are stored in body
fat; vitamin C is water-soluble.
4. Which are primary sources of complete proteins?
A. Eggs
B. Lentils
C. Quinoa
D. Chicken
Correct Answer: A, C, D
Rationale: Complete proteins contain all essential amino acids.
Lentils are incomplete on their own.
5. Which minerals are considered electrolytes?
A. Sodium
B. Potassium
C. Magnesium
D. Calcium
Correct Answer: A, B, C
Rationale: Electrolytes help maintain fluid balance; calcium
,primarily functions in bones but can act as an electrolyte under
certain conditions.
6. What factors affect basal metabolic rate (BMR)?
A. Age
B. Body composition
C. Gender
D. Physical activity level
Correct Answer: A, B, C
Rationale: BMR depends on age, gender, and lean body mass.
Physical activity affects total energy expenditure, not BMR
directly.
7. Which of the following are considered essential fatty acids?
A. Alpha-linolenic acid (ALA)
B. Linoleic acid (LA)
C. Oleic acid
D. Palmitic acid
Correct Answer: A, B
Rationale: Essential fatty acids cannot be synthesized by the
body; oleic and palmitic acids are non-essential.
8. Which hormones regulate blood glucose?
A. Insulin
B. Glucagon
, C. Cortisol
D. Thyroxine
Correct Answer: A, B, C
Rationale: Insulin lowers glucose, glucagon raises it, and
cortisol increases glucose through gluconeogenesis. Thyroxine
affects metabolism but not directly glucose regulation.
9. Which are water-soluble vitamins?
A. Thiamine
B. Riboflavin
C. Vitamin A
D. Niacin
Correct Answer: A, B, D
Rationale: B-complex vitamins and vitamin C are water-soluble;
vitamin A is fat-soluble.
10. Which factors influence nutrient bioavailability?
A. Presence of inhibitors (e.g., phytates)
B. Food preparation methods
C. Nutrient interactions
D. Gender
Correct Answer: A, B, C
Rationale: Bioavailability is affected by inhibitors, cooking, and
nutrient interactions, not directly by gender.
ANSWERS (VERIFIED ANSWERS) Q&A 2026
|INSTANT DOWNLOAD PDF
1. Which of the following are macronutrients essential for
energy production?
A. Carbohydrates
B. Lipids
C. Proteins
D. Vitamins
Correct Answer: A, B, C
Rationale: Macronutrients (carbs, fats, proteins) provide
energy. Vitamins are micronutrients and do not directly supply
energy.
2. What are the main functions of dietary fiber?
A. Promotes satiety
B. Reduces cholesterol absorption
C. Provides energy
D. Regulates bowel movements
Correct Answer: A, B, D
Rationale: Fiber helps in satiety, cholesterol regulation, and
bowel health. It is not a source of calories.
,3. Which vitamins are fat-soluble?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Correct Answer: A, C, D
Rationale: Fat-soluble vitamins (A, D, E, K) are stored in body
fat; vitamin C is water-soluble.
4. Which are primary sources of complete proteins?
A. Eggs
B. Lentils
C. Quinoa
D. Chicken
Correct Answer: A, C, D
Rationale: Complete proteins contain all essential amino acids.
Lentils are incomplete on their own.
5. Which minerals are considered electrolytes?
A. Sodium
B. Potassium
C. Magnesium
D. Calcium
Correct Answer: A, B, C
Rationale: Electrolytes help maintain fluid balance; calcium
,primarily functions in bones but can act as an electrolyte under
certain conditions.
6. What factors affect basal metabolic rate (BMR)?
A. Age
B. Body composition
C. Gender
D. Physical activity level
Correct Answer: A, B, C
Rationale: BMR depends on age, gender, and lean body mass.
Physical activity affects total energy expenditure, not BMR
directly.
7. Which of the following are considered essential fatty acids?
A. Alpha-linolenic acid (ALA)
B. Linoleic acid (LA)
C. Oleic acid
D. Palmitic acid
Correct Answer: A, B
Rationale: Essential fatty acids cannot be synthesized by the
body; oleic and palmitic acids are non-essential.
8. Which hormones regulate blood glucose?
A. Insulin
B. Glucagon
, C. Cortisol
D. Thyroxine
Correct Answer: A, B, C
Rationale: Insulin lowers glucose, glucagon raises it, and
cortisol increases glucose through gluconeogenesis. Thyroxine
affects metabolism but not directly glucose regulation.
9. Which are water-soluble vitamins?
A. Thiamine
B. Riboflavin
C. Vitamin A
D. Niacin
Correct Answer: A, B, D
Rationale: B-complex vitamins and vitamin C are water-soluble;
vitamin A is fat-soluble.
10. Which factors influence nutrient bioavailability?
A. Presence of inhibitors (e.g., phytates)
B. Food preparation methods
C. Nutrient interactions
D. Gender
Correct Answer: A, B, C
Rationale: Bioavailability is affected by inhibitors, cooking, and
nutrient interactions, not directly by gender.
