Q: A person consumes 500 kcal less per day than their energy expenditure. According to energy equivalence, how much weight (in pounds) would they expect to lose in one week?

$$\frac{500 \times 7}{3500} = 1 lb$$

Question 1

Which B-vitamin is primarily involved as a coenzyme in carbohydrate and amino acid metabolism, and its deficiency can lead to beriberi?

Accepted Answer

Thiamin

Question 2

A patient presents with a swollen thyroid gland (goiter). Which mineral deficiency is most likely responsible for this condition?

Accepted Answer

Iodine

Question 3

Which of the following statements about Basal Metabolic Rate (BMR) is correct?

Accepted Answer

BMR is primarily determined by lean body mass and decreases with age.

Question 4

A person consumes 500 kcal less per day than their energy expenditure. According to energy equivalence, how much weight (in pounds) would they expect to lose in one week?

Accepted Answer

$$\frac{500 	imes 7}{3500} = 1 lb$$

Question 5

Which of the following is NOT a limitation of using BMI to assess healthful body weight?

Accepted Answer

BMI accurately distinguishes between muscle and fat mass.

Question 6

Which B-vitamin is most sensitive to light and can be lost if milk is stored in glass bottles?

Accepted Answer

Riboflavin

Question 7

A person who eats a lot of raw egg whites is at risk for deficiency of which vitamin, and why?

Accepted Answer

Biotin, because a protein in egg whites binds biotin and prevents absorption.

Question 8

Which mineral enhances the ability of insulin to move glucose from blood into cells?

Accepted Answer

Chromium

Question 9

Which of the following is a function of niacin in energy metabolism?

Accepted Answer

Assists in DNA replication and cell differentiation

Question 10

Which of the following is a characteristic of android (apple-shaped) fat distribution?

Accepted Answer

Associated with increased risk for type II diabetes and heart disease

Question 11

Which method of body composition assessment is considered most accurate but is limited by cost and accessibility?

Accepted Answer

Dual energy x-ray absorptiometry (DXA)

Question 12

Which of the following is a risk factor associated with obesity?

Accepted Answer

Hypertension

Question 13

Which component of energy expenditure is most affected by lean body mass?

Accepted Answer

Basal metabolic rate (BMR)

Question 14

Which of the following is a plausible consequence of iodine deficiency during pregnancy?

Accepted Answer

Infant risk of cretinism and mental impairment

Question 15

Which of the following is a recommended strategy for long-term maintenance of weight loss?

Accepted Answer

Participate in regular physical activity (60-90 minutes, 5 days a week)

Question 16

Which of the following prescription weight-loss drugs works by inhibiting the absorption of dietary fat from the intestinal tract?

Accepted Answer

Xenical & Alli

Question 17

A patient is considering bariatric surgery. Which of the following is a criterion for eligibility?

Accepted Answer

BMI \u003e 40 or BMI 35-40 with other life-threatening conditions

Question 18

Which of the following statements about the thermic effect of food (TEF) is correct?

Accepted Answer

TEF is lower for dietary fat compared to protein or carbohydrate.

Question 19

Which of the following is a behavior modification technique shown to promote weight loss and reduce rates of disordered eating?

Accepted Answer

Intuitive eating

Question 20

Which equation is used to calculate Body Mass Index (BMI)?

Accepted Answer

$$	ext{BMI} = \frac{	ext{weight (kg)}}{	ext{height (m)}^2}$$

Energy Metabolism, B-Vitamins, Minerals, and Obesity: Structured Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards