Edition by Rebecca Sroda & Tonia Reinhard | All 1-18 Chapters Covered With Questions
And Verified Solutions With Detailed Rationales And Case Studies.
, TABLE OF CONTENT
Chapter 1: Eating 101
Chapter 2: Carbohydrates
Chapter 3: Protein
Chapter 4: Lipids
Chapter 5: Vitamins
Chapter 6: Minerals
Chapter 7: Water
Chapter 8: Dietary and Herbal Supplements
Chapter 9: Diet and Dental Caries
Chapter 10: Nutrition and Periodontal Disease
Chapter 11: Choosing Foods for Health and Fitness
Chapter 12: Reading Labels
Chapter 13: Nutrient Needs for Development and
Maintenance of Oral Structures
Chapter 14: Dietary Considerations for the Life Cycle
Chapter 15: Eating Disorders
Chapter 16: Nutritional Counseling
Chapter 17: Nutritional Considerations for Special
Population Groups
Chapter 18: Nutritive Value of Complementary Therapies
for Oral Care
,Chapter 1: Eating 101
MULTIPLE CHOICE QUESTIONS
1. Which of the following macronutrients provides the most energy per gram?
• A) Carbohydrates
• B) Proteins
• C) Fats
• D) Lipids (fats)
Rationale for Correct Answer (D): Lipids (fats) provide 9 kilocalories per gram, which is more than
double the energy provided by carbohydrates and proteins (both provide 4 kcal/g). Alcohol provides
7 kcal/g but is not considered a macronutrient essential for health.
Explanations for Incorrect Answers:
• A) Carbohydrates: While carbohydrates are the body's preferred and most readily available
source of energy, they only provide 4 kcal/g, less than half the caloric density of fats.
• B) Proteins: Proteins are primarily used for tissue growth and repair, not energy production.
When used for energy, they yield only 4 kcal/g.
• C) Fats: This is a synonym for lipids, but "Lipids" is the more scientifically precise term used in
nutritional biochemistry, making it the better answer in a professional test bank context.
2. The primary function of carbohydrates in the human diet is to:
• A) Build and repair muscle tissue
• B) Insulate the body against cold
• C) Provide the main source of fuel for the brain and red blood cells
• D) Regulate gene expression and hormone production
Rationale for Correct Answer (C): Carbohydrates are broken down into glucose, which is the
preferred and primary energy substrate for the brain, central nervous system, and erythrocytes (red
blood cells). The body requires a minimum of 130 grams of carbohydrates daily to fuel these vital
tissues.
Explanations for Incorrect Answers:
• A) Build and repair muscle tissue: This is the primary role of proteins, specifically through
their amino acid components.
• B) Insulate the body against cold: This is a function of adipose tissue (stored lipids/fats),
which provides thermal insulation.
, • D) Regulate gene expression and hormone production: This is largely the role of specific
micronutrients (like vitamins A and D) and essential fatty acids, not carbohydrates.
3. A patient asks you why they feel tired and shaky a few hours after eating a large candy bar. You
explain that this is most likely due to:
• A) An allergic reaction to sugar
• B) A sudden drop in protein synthesis
• C) Reactive hypoglycemia caused by a rapid insulin surge
• D) Dehydration from the osmotic effect of glucose
Rationale for Correct Answer (C): Consuming a high-glycemic, simple sugar load (like a candy bar)
causes a rapid spike in blood glucose. The pancreas responds by secreting a large amount of insulin
to clear the glucose from the blood. This often overshoots, causing blood sugar to drop too low
(reactive hypoglycemia), resulting in symptoms like fatigue, shakiness, and hunger.
Explanations for Incorrect Answers:
• A) An allergic reaction to sugar: True food allergies involve an immune response (IgE
antibodies) to specific proteins. Sugar is not a protein and does not trigger classic allergic
reactions.
• B) A sudden drop in protein synthesis: Protein synthesis is a slow, ongoing process not
directly tied to the acute postprandial (after-eating) phase of a simple sugar meal.
• D) Dehydration from the osmotic effect of glucose: While high glucose can cause osmotic
diuresis in uncontrolled diabetes, this acute shakiness is a classic sign of hypoglycemia, not
dehydration.
4. Which type of dietary fat is liquid at room temperature and is generally considered most
beneficial for cardiovascular health?
• A) Saturated fat
• B) Trans fat
• C) Unsaturated fat
• D) Hydrogenated fat
Rationale for Correct Answer (C): Unsaturated fats (monounsaturated and polyunsaturated) have
one or more double bonds in their fatty acid chains, which creates kinks that prevent tight packing.
This is why they remain liquid at room temperature (oils). They are considered "heart-healthy" as
they can help lower LDL (bad) cholesterol when used in place of saturated fats.
Explanations for Incorrect Answers:
• A) Saturated fat: These fats have no double bonds, pack tightly, and are solid at room
temperature (e.g., butter, lard). They are linked to increased cardiovascular risk when
consumed in excess.