Edition By Wendy Schiff, Traci L. Keck
Chapter 1-13
Which nutrient provides the greatest amount of
energy per gram?
A. Carbohydrate
B. Protein
C. Fat
D. Alcohol
Answer: C. Fat
Rationale: Fat provides about 9 kcal/g, while carbs
and protein provide ~4 kcal/g and alcohol ~7 kcal/g.
1. The Recommended Dietary Allowance (RDA) is best described as:
A. The minimum amount to prevent deficiency in most people
B. The average energy requirement for the population
C. The nutrient intake sufficient for nearly all (97–98%) healthy people
D. A temporary guideline for hospitalized patients
Answer: C. The nutrient intake sufficient for nearly all (97–98%) healthy people
Rationale: RDA is set to meet needs of almost all healthy individuals in a group.
,2. Nutrition affects health primarily by:
A. Determining skin color only
B. Modifying gene sequences directly
C. Providing energy and nutrients for body processes
D. Eliminating the need for exercise
Answer: C. Providing energy and nutrients for body processes
Rationale: Nutrition supplies energy and materials for growth, repair, and regulation.
3. Which is an example of a macronutrient?
A. Vitamin C
B. Iron
C. Carbohydrate
D. Folate
Answer: C. Carbohydrate
Rationale: Macronutrients are carbohydrates, proteins, fats (and water);
vitamins/minerals are micronutrients.
4. A kilocalorie (kcal) is:
A. The measure of a food's weight
B. The amount of heat needed to raise 1 kg of water 1°C
C. Equal to 1000 milliliters
D. The same as a gram
Answer: B. The amount of heat needed to raise 1 kg of water 1°C
Rationale: That is the scientific definition of a kilocalorie.
5. Which factor does NOT influence food choices?
A. Culture
B. Weather on Mars
C. Economics
D. Personal taste
Answer: B. Weather on Mars
Rationale: Culture, cost, and taste influence choices; weather on Mars is irrelevant.
6. Nutrient dense foods are defined as:
A. High in calories and low in nutrients
B. High in nutrients relative to calorie content
C. Foods with lots of water only
D. Foods that are always expensive
Answer: B. High in nutrients relative to calorie content
Rationale: Nutrient density means more vitamins/minerals per calorie.
7. Which statement about dietary supplements is true?
A. They are strictly regulated like prescription drugs
B. They can replace a healthy diet in all cases
, C. They may help if a true deficiency exists
D. They always cause harm
Answer: C. They may help if a true deficiency exists
Rationale: Supplements can correct deficiencies but are not identical to whole foods.
8. The term "essential nutrient" means:
A. The body can synthesize it in large quantities
B. It must be obtained from the diet because the body can’t make enough
C. It’s only needed during infancy
D. It provides no energy
Answer: B. It must be obtained from the diet because the body can’t make
enough
Rationale: Essential nutrients cannot be synthesized sufficiently by the body.
9. A balanced diet typically includes:
A. Only carbohydrates and fats
B. A variety of foods across food groups in proper amounts
C. Eliminating all fats
D. Eating only fruits
Answer: B. A variety of foods across food groups in proper amounts
Rationale: Balance means variety and moderation from recommended groups.
10.The Acceptable Macronutrient Distribution Range (AMDR) is used to:
A. Define a single ideal diet for everyone
B. Provide recommended ranges for macronutrient intake as percent of energy
C. Set daily vitamin doses
D. Determine body mass index
Answer: B. Provide recommended ranges for macronutrient intake as percent of
energy
Rationale: AMDR gives percent-of-energy ranges for carbs, fats, and proteins.
11.Which tool helps estimate calorie needs?
A. Food label ingredient list
B. Estimated Energy Requirement (EER) equations
C. RDA for vitamins
D. AMDR for fat only
Answer: B. Estimated Energy Requirement (EER) equations
Rationale: EER formulas estimate daily energy needs based on age, sex, weight,
activity.
12.Chronic undernutrition often leads to:
A. Improved immune function
B. Increased growth rates
C. Impaired physical and cognitive development
, D. Permanent protection from deficiency
Answer: C. Impaired physical and cognitive development
Rationale: Chronic undernutrition harms growth, development, and immunity.
13.Which is a reliable source for nutrition recommendations?
A. Peer-reviewed scientific organizations
B. Celebrity blogs only
C. Social media claims with no data
D. Random internet forums
Answer: A. Peer-reviewed scientific organizations
Rationale: Reliable recommendations come from scientific reviews and authorities.
14.Which statement about water is true?
A. It’s a micronutrient
B. The body can store large amounts of water for months
C. Water is essential for transport, temperature regulation, and chemical reactions
D. Drinking water provides vitamins
Answer: C. Water is essential for transport, temperature regulation, and chemical
reactions
Rationale: Water is vital for physiological functions and is a macronutrient by volume.
Chapter 2 — Digestion, Absorption, and
Transport (16–30)
16.Where does most nutrient absorption occur?
A. Stomach
B. Small intestine
C. Large intestine
D. Esophagus
Answer: B. Small intestine
Rationale: The small intestine has villi and microvilli that maximize absorption.
17.The enzyme pepsin is activated in the stomach to digest:
A. Fats
B. Proteins
C. Carbohydrates
D. Vitamins
Answer: B. Proteins