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Nutr 455 8.1 Exam 4 Answers PDF | Energy Expenditure BMI REE TEF Obesity Trends

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INSTANT PDF DOWNLOAD of the complete "Nutr 455 8.1 exam 4 - " featuring 167 graded questions and correct answers on energy balance, Resting Energy Expenditure (REE), Thermic Effect of Food (TEF), Physical Activity (PA), Total Energy Expenditure (TEE), Body Mass Index (BMI) calculations, body composition assessment methods (DEXA, skinfold calipers, air displacement plethysmography, doubly labeled water), Respiratory Quotient (RQ) for carbohydrates (1.0) and fats (0.7), caloric deficit for fat loss (3,500 kcal/lb), obesity prevalence trends in the U.S., Type 2 diabetes risk factors, hyperthyroidism and BMR, pregnancy metabolic changes, and limitations of BMI for athletes. Perfect for nutrition science, dietetics, and health exam y expenditure exam, REE TEF answers, BMI calculation quiz, Nutr 455 key, body composition assessment, obesity trends study guide, respiratory quotient questions, caloric deficit 3500 kcal, doubly labeled water method, DEXA scan explained, skinfold calipers technique, thermic effect of food protein, Type 2 diabetes obesity link, BMR pregnancy hyperthyroidism, Mifflin St Jeor equation

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Institution
Nutrition
Course
Nutrition

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1. Explain the relationship between the increased consumption of processed
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foods and the rise in obesity rates in the U.S.
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r. Processed foods contain essential nutrients that help regulate r. r. r. r. r. r. r.



metabolism and prevent weight gain.
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r. Processed foods are generally lower in calories and promote a feeling r. r. r. r. r. r. r. r. r. r.



of fullness, leading to decreased overall food intake.
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r . Processed foods are often high in calories, unhealthy fats, and r. r. r. r. r. r. r. r. r.



r. added sugars, contributing to energy imbalance and weight gain.
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r. Processed foods have no significant impact on obesity rates as they r. r. r. r. r. r. r. r. r. r.



are consumed in small quantities.
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2. Why is dieting (calorie restriction) an ineffective long-term strategy for
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achieving a healthy body weight?
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r . Calorie restriction causes a reduction in BMR r. r. r. r. r. r.




r . Calorie restriction causes fatigue which decreases activity
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r. Calorie restriction increases feelings of hunger r. r. r. r. r.




r . All the above r. r.




3. According to the simplified estimation method, what is the caloric
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expenditure rate per kilogram of body weight per hour used to estimate
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Resting Energy Expenditure (REE)?
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1.2 kcal/kg/hourr.




0.8 kcal/kg/hour r.




1.5 kcal/kg/hourr.

, r. 1 kcal/kg/hour
r.




4. An athlete weighs 90 kg and aims to increase their daily caloric intake by 500
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kcal above their Resting Energy Expenditure (REE), estimated using the 1
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kcal/kg/hour method. What should be their total daily caloric intake?
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r . 2660 kcal r.




r. 2760 kcal r.




r . 2160 kcal r.




r . 2900 kcal r.




r . 2400 kcal r.




5. What demographic shift prompted the change in terminology from 'adult-
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onset diabetes' toType 2 diabetes?
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r. Improved diagnostic criteria for diabetes in adults. r. r. r. r. r. r. r.




The discovery of new genetic markers for diabetes.
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r.The aging of the global population.
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r . The increasing prevalence of obesity in children.
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6. What is the typical range for the percentage of total energy expenditure
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(TEE) attributed to physical activity?
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r. 15-30%

r . 60-75%

r . 35-50%

r . 5-10%

7. 2 What are the three main components of energy output?
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, r. PhysicalActivity, REE, DRI .r r. r. r.




r. TEF, UL, RDA r. r.




r . REE, TER, TFF r. r.




r . REE, TEF, Physical Activity
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8. According to standard estimations, what percentage ofTotal Energy
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Expenditure (TEE) does the Thermic Effect of Food (TEF) constitute?
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r. 10%

r. 15%

r. 5%

r. 20%

9. An athlete has aTotal Energy Expenditure (TEE) of 3500 kcal/day. However,
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they consistently consume only 3000 kcal/day. What is the likely outcome
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regarding their body weight, assuming all other factors remain constant?
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r . The athlete will likely lose weight.
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r . The athlete will experience increased muscle mass without weight
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change.
r.




r . The athlete's weight will remain stable.
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r. The athlete will experience water retention.
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r. The athlete will likely gain weight.
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10. What does the obesity prevalence rate of less than 20% in all U.S. states in
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1980 suggest about the overall health trends at that time compared to
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current trends? r.




r . It suggests that obesity was not considered a health concern in 1980.
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, r. It indicates a significantly lower prevalence of obesity compared to
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current rates.
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r . It implies that data collection methods were less accurate in 1980.
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r. It reflects similar obesity rates to those observed today, adjusted for
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population size
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r . It means that the average BMI was higher in 1980 than it is today.
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11. Respiratory quotient (RQ) or respiratory exchange ratio (RER) is calculated as
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r. CO2 produced XO2 consumed r. r. .r r. r.




r. CO2 produced + O2 consumed r. r. r. r.




r . CO2 produced / O2 consumed r. r. r. r.




r . O2 consumed / CO2 produced
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12. Explain the significance of theThermic Effect of Food (TEF) in the context of
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Total Energy Expenditure (TEE).
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r . TEF is negligible and does not significantly impactTEE
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r . TEF represents the energy required to maintain basic bodily functions
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at rest and is the largest component ofTEE.
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r. TEF is the primary driver ofTEE, accounting for the largest percentage
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of energy expenditure.
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TEF represents the energy expended to digest, absorb, and
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metabolize nutrients, contributing a relatively small but consistent r. r. r. r. r. r. r.



portion of TEE.
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r. TEF is the energy used for physical activity and has the largest impact
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on TEE.
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Institution
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Nutrition

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