BIOD 121 Final Exam 2025 Questions and
correct Answers 2025
1. Which of the following is classified as a macronutrient?
A. Vitamin D
B. Protein
C. Iron
D. Folate
Answer: B. Protein
Rationale: Protein is a macronutrient, along with carbohydrates and fats. The
others are micronutrients.
2. What is the main function of carbohydrates in the body?
A. Build muscle tissue
B. Store genetic information
C. Provide energy
D. Regulate body temperature
Answer: C. Provide energy
3. Which vitamin is fat-soluble?
A. Vitamin B12
B. Vitamin C
C. Vitamin A
D. Biotin
Answer: C. Vitamin A
Rationale: Fat-soluble vitamins include A, D, E, and K.
,4. What is the recommended percentage of total daily calories from fat for a
healthy adult?
A. 5–10%
B. 10–20%
C. 20–35%
D. 50–65%
Answer: C. 20–35%
5. Which organ is primarily responsible for nutrient absorption?
A. Stomach
B. Small intestine
C. Large intestine
D. Liver
Answer: B. Small intestine
6. A deficiency in which vitamin can lead to scurvy?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: B. Vitamin C
7. Which mineral is essential for oxygen transport in the blood?
A. Calcium
B. Potassium
C. Iron
D. Sodium
Answer: C. Iron
8. What is the primary storage form of carbohydrate in the body?
A. Glucose
, B. Fiber
C. Glycogen
D. Starch
Answer: C. Glycogen
9. Which type of fat is considered the most harmful to cardiovascular health?
A. Monounsaturated fat
B. Saturated fat
C. Polyunsaturated fat
D. Trans fat
Answer: D. Trans fat
10. Which vitamin helps with blood clotting?
A. Vitamin A
B. Vitamin D
C. Vitamin E
D. Vitamin K
Answer: D. Vitamin K
11. Basal metabolic rate (BMR) is influenced by all of the following EXCEPT:
A. Age
B. Body composition
C. Sleep position
D. Hormonal levels
Answer: C. Sleep position
12. Which of the following foods is a complete protein?
A. Lentils
B. Peanut butter
C. Quinoa
correct Answers 2025
1. Which of the following is classified as a macronutrient?
A. Vitamin D
B. Protein
C. Iron
D. Folate
Answer: B. Protein
Rationale: Protein is a macronutrient, along with carbohydrates and fats. The
others are micronutrients.
2. What is the main function of carbohydrates in the body?
A. Build muscle tissue
B. Store genetic information
C. Provide energy
D. Regulate body temperature
Answer: C. Provide energy
3. Which vitamin is fat-soluble?
A. Vitamin B12
B. Vitamin C
C. Vitamin A
D. Biotin
Answer: C. Vitamin A
Rationale: Fat-soluble vitamins include A, D, E, and K.
,4. What is the recommended percentage of total daily calories from fat for a
healthy adult?
A. 5–10%
B. 10–20%
C. 20–35%
D. 50–65%
Answer: C. 20–35%
5. Which organ is primarily responsible for nutrient absorption?
A. Stomach
B. Small intestine
C. Large intestine
D. Liver
Answer: B. Small intestine
6. A deficiency in which vitamin can lead to scurvy?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: B. Vitamin C
7. Which mineral is essential for oxygen transport in the blood?
A. Calcium
B. Potassium
C. Iron
D. Sodium
Answer: C. Iron
8. What is the primary storage form of carbohydrate in the body?
A. Glucose
, B. Fiber
C. Glycogen
D. Starch
Answer: C. Glycogen
9. Which type of fat is considered the most harmful to cardiovascular health?
A. Monounsaturated fat
B. Saturated fat
C. Polyunsaturated fat
D. Trans fat
Answer: D. Trans fat
10. Which vitamin helps with blood clotting?
A. Vitamin A
B. Vitamin D
C. Vitamin E
D. Vitamin K
Answer: D. Vitamin K
11. Basal metabolic rate (BMR) is influenced by all of the following EXCEPT:
A. Age
B. Body composition
C. Sleep position
D. Hormonal levels
Answer: C. Sleep position
12. Which of the following foods is a complete protein?
A. Lentils
B. Peanut butter
C. Quinoa
