BIOD 121 M1–M6 EXAMS PLUS FINAL EXAMS V1 & V2 (PORTAGE LEARNING) STUDY GUIDE 2026 COMPLETE QUESTIONS WITH CORRECT DETAILED ANSWERS || 100% GUARANTEED PASS <RECENT VERSION>

BIOD 121 M1–M6 EXAMS PLUS FINAL EXAMS V1 & V2
(PORTAGE LEARNING) STUDY GUIDE 2026 COMPLETE
QUESTIONS WITH CORRECT DETAILED ANSWERS || 100%
GUARANTEED PASS <RECENT VERSION>
BIOD 121 Nutrition Final Exam Study Guide: 100 Q&A

Module 1: Introduction to Nutrition

1. What is the definition of nutrition?
A. The study of dieting and weight loss.
B. The science of food and how it nourishes the body and influences health.
C. The process of cooking and preparing meals.
D. The analysis of foodborne illnesses.

2. Which of the following is NOT one of the six classes of nutrients?
A. Carbohydrates
B. Fiber
C. Fats
D. Water
E. Alcohol

3. What are the three main functions of nutrients in the body?
A. Provide energy, regulate temperature, build muscle
B. Provide energy, support growth and development, regulate body processes
C. Build cell membranes, create hormones, store fat
D. Hydrate cells, facilitate digestion, improve mood

4. How many kilocalories are in one gram of protein?
A. 4 kcal
B. 7 kcal
C. 9 kcal
D. 0 kcal

5. How many kilocalories are in one gram of fat?
A. 4 kcal
B. 7 kcal
C. 9 kcal
D. 0 kcal

,6. How many kilocalories are in one gram of carbohydrates?
A. 4 kcal
B. 7 kcal
C. 9 kcal
D. 0 kcal

7. What does the term "essential nutrient" mean?
A. A nutrient that tastes good.
B. A nutrient that the body can produce in sufficient quantities.
C. A nutrient that must be obtained from the diet because the body cannot make it or cannot
make enough of it.
D. A nutrient that is only found in expensive foods.

8. The five components of a nutritious diet are adequacy, balance, calorie control,
moderation, and:
A. Variety
B. Simplicity
C. Organic sourcing
D. High protein

9. The Average Daily Nutrient Intake level estimated to meet the requirements of half of the
healthy individuals in a particular life stage and gender group is known as the:
A. Recommended Dietary Allowance (RDA)
B. Adequate Intake (AI)
C. Estimated Average Requirement (EAR)
D. Tolerable Upper Intake Level (UL)

10. Which DRI is set to meet the needs of nearly all (97-98%) healthy people in a specific
group?
A. Estimated Average Requirement (EAR)
B. Recommended Dietary Allowance (RDA)
C. Adequate Intake (AI)
D. Tolerable Upper Intake Level (UL)



Module 2: Digestive System & Metabolism

11. The process of breaking down food into absorbable components is called:
A. Absorption
B. Digestion

, C. Metabolism
D. Elimination

12. What is the primary function of the esophagus?
A. To digest proteins
B. To absorb water
C. To transport food from the mouth to the stomach
D. To produce bile

13. Which macronutrient begins its chemical digestion in the mouth via salivary amylase?
A. Fats
B. Proteins
C. Carbohydrates
D. Vitamins

14. Hydrochloric acid and pepsin are active in the stomach and are essential for the digestion
of:
A. Carbohydrates
B. Fats
C. Proteins
D. Fiber

15. The majority of nutrient absorption occurs in the:
A. Stomach
B. Small intestine
C. Large intestine
D. Esophagus

16. What is the primary role of the large intestine?
A. To absorb carbohydrates and proteins
B. To absorb water and electrolytes and form feces
C. To secrete digestive enzymes
D. To neutralize stomach acid

17. Bile, produced by the liver and stored in the gallbladder, is essential for the emulsification
of:
A. Carbohydrates
B. Proteins
C. Fats
D. Sugars