Question 1

According to the energy balance equation,body weight would increase if ___________________________.

Accepted Answer

All of the options describe scenarios where the energy intake is greater than the energy expenditure, leading to an increase in body weight according to the energy balance equation.

Question 2

The basal metabolic rate is proportional to _________________.

Accepted Answer

The basal metabolic rate (BMR) is the minimum metabolic rate needed to sustain basic function at rest. It is primarily determined by the fat free mass (FFM) of the body, which includes muscle, bones, and organs. This is because FFM requires more energy to maintain than fat does, so the more FFM a person has, the higher their BMR will be. Body fat content, including subcutaneous fat, may also have an impact on BMR, but it is not the primary determinant. Therefore, choice B is the best answer.

Question 3

The basal metabolic rate of a sedentary person is usually __________ percent of his or her total energy expenditure.

Accepted Answer

The basal metabolic rate (BMR) typically accounts for about 60-75% of a sedentary person's total energy expenditure, as it represents the energy required for maintaining basic physiological functions at rest.

Question 4

Body density is equal to__________________.

Accepted Answer

Body density is defined as the mass of an object divided by its volume. This means that the correct formula for calculating body density is mass (in kilograms) divided by volume (in cubic meters). Option A accurately represents this formula.

Question 5

Non-shivering thermogenesis involves __________which is rich in ____________.

Accepted Answer

Non-shivering thermogenesis is primarily done by brown adipose tissue, which is rich in mitochondria. White adipose tissue, on the other hand, does not have as many mitochondria and is not involved in non-shivering thermogenesis. Additionally, myoglobin is found in muscle tissue and is not directly involved in non-shivering thermogenesis.

Question 6

Calculate how much weight loss is required to achieve a body composition of 20% body fat given: Current body weight = 162 pounds
Current percent body fat = 30%
Given the above information,this individual would need to lose _____pounds of fat to achieve a body composition of 20% body fat.

Accepted Answer

To find the weight loss required, first calculate the current fat weight: 162 pounds * 30% = 48.6 pounds of fat. To achieve 20% body fat, the fat weight should be 20% of the new total weight. Let x be the new total weight: 0.2x = 48.6 - (162 - x). Solving for x gives approximately 142.25 pounds. The weight loss required is 162 - 142.25 = 19.75 pounds, which rounds to 20.25 pounds.

Question 7

The glycemic index is used to describe_______________________.

Accepted Answer

The glycemic index is used to describe the impact that a specific food has on the amount of glucose in the blood. It measures how quickly and how much a food raises blood glucose levels after it is eaten.

Question 8

According to the nutrient balance model,which of the following nutrients,when consumed in excess,is most likely linked to weight gain?

Accepted Answer

Fat is more calorie-dense than carbohydrates and protein, making it more likely to contribute to weight gain when consumed in excess.

Question 9

Physical activity constitutes the most variable part of energy expenditure side of the energy balance equation.In fact,energy expenditure from physical activity can account for _______of the total energy expenditure.

Accepted Answer

Energy expenditure from physical activity can vary widely among individuals, accounting for 5-40% of total energy expenditure. This variability is due to differences in occupation, lifestyle, and the amount of voluntary exercise.

Question 10

Based on information from the National Weight Control Registry (the "successful losers"),the duration of exercise each day associated with sustained weight loss is

Accepted Answer

The National Weight Control Registry suggests that sustained weight loss is associated with daily exercise of 60-90 minutes.

Question 11

Which of the following factors does NOT contribute to energy balance and potential weight gain?

Accepted Answer

All the options listed (health conditions, physical activity, and medicines) can influence energy balance and potentially contribute to weight gain or loss.

Question 12

A male college student practices caloric restriction (negative caloric balance of 500 calories per day)for 21 days.In theory,this individual should lose ______ pound(s)of fat at the completion of the 21 days.

Accepted Answer

Caloric restriction of 500 calories per day for 21 days results in a total caloric deficit of 500 * 21 = 10,500 calories. Since 1 pound of fat is equivalent to 3500 calories, the individual should lose approximately 10,500 / 3500 = 3 pounds of fat.

Question 13

Prolonged (several months)caloric restriction results in a reduction in the basal metabolic rate.The explanation for this decline in basal metabolic rate is linked to ______________.

Accepted Answer

The decline in basal metabolic rate due to prolonged caloric restriction is multifactorial, involving a loss of both lean and fat tissue, a decrease in circulating levels of thyroid hormone (T3), and a reduced level of sympathetic nervous system activity. All these factors contribute to the body's efforts to conserve energy under conditions of reduced caloric intake.

Question 14

Body density calculated from the sum of skinfolds can be converted to percent fat using the Siri equation.

Accepted Answer

The Siri equation is used to convert body density (measured through skinfold measurements or other methods) to percent body fat.

Question 15

The Daily Value (DV)is a standard used in food labeling and is based on a 2,000-kcal diet.

Accepted Answer

The Daily Value is based on a 2,000-kcal diet.

Question 16

At the end of a 10 day period of overeating,a positive caloric balance (i.e. ,excess calories)of 350 kcal/day would cause body weight to increase by _____ .

Accepted Answer

To determine the amount of weight gain, we need to use the following equation:

Weight gain (in pounds) = Excess calories / 3500

In this case, the excess calories over the 10-day period is:

350 kcal/day x 10 days = 3500 kcal

So the weight gain would be:

Weight gain = 3500 kcal / 3500 = 1 pound

Therefore, the correct answer is C - 1.0 pound.

Question 17

A net gain (i.e. ,positive energy balance)of ____________kcal is required to add 1 pound of adipose tissue.

Accepted Answer

It is estimated that a net gain of 3500 kcal is required to add 1 pound of adipose tissue. This is because 1 pound of adipose tissue is equivalent to about 454 grams, and each gram of adipose tissue contains approximately 7.7 kcal of energy. Therefore, 454 grams x 7.7 kcal/gram = 3495.8 kcal, which is rounded up to 3500 kcal.

Question 18

If you did not correct the underwater weight for the air remaining in the lungs at the time of measurement,you would underestimate body fatness.

Accepted Answer

The answer of If you did not correct the underwater...

Question 19

Which of the following is the currently widely accepted anthropomorphic measurement method for the diagnosis of overweight and obesity?

Accepted Answer

Body mass index (BMI) is currently the widely accepted anthropomorphic measurement method for the diagnosis of overweight and obesity. It is calculated by dividing an individual's weight in kilograms by the square of their height in meters. The World Health Organization (WHO) and other international health organizations use BMI as a screening tool for overweight and obesity, as it has been shown to be a reliable indicator of body fatness in most people.

Question 20

A male with a body mass index of 29 kg/m² would be most accurately classified as

Accepted Answer

A BMI of 29 falls into the overweight category.

Quiz 19: Nutrition and Body Composition for Health

According to the energy balance equation,body weight would increase if ___________________________.

The basal metabolic rate is proportional to _________________.

The basal metabolic rate of a sedentary person is usually __________ percent of his or her total energy expenditure.

Body density is equal to__________________.

Non-shivering thermogenesis involves which is rich in __.

Calculate how much weight loss is required to achieve a body composition of 20% body fat given: Current body weight = 162 pounds Current percent body fat = 30% Given the above information,this individual would need to lose _____pounds of fat to achieve a body composition of 20% body fat.

The glycemic index is used to describe_______________________.

According to the nutrient balance model,which of the following nutrients,when consumed in excess,is most likely linked to weight gain?

Physical activity constitutes the most variable part of energy expenditure side of the energy balance equation.In fact,energy expenditure from physical activity can account for _______of the total energy expenditure.

Based on information from the National Weight Control Registry (the "successful losers") ,the duration of exercise each day associated with sustained weight loss is

Which of the following factors does NOT contribute to energy balance and potential weight gain?

A male college student practices caloric restriction (negative caloric balance of 500 calories per day) for 21 days.In theory,this individual should lose ______ pound(s) of fat at the completion of the 21 days.

Prolonged (several months) caloric restriction results in a reduction in the basal metabolic rate.The explanation for this decline in basal metabolic rate is linked to ______________.

Body density calculated from the sum of skinfolds can be converted to percent fat using the Siri equation.

The Daily Value (DV)is a standard used in food labeling and is based on a 2,000-kcal diet.

At the end of a 10 day period of overeating,a positive caloric balance (i.e. ,excess calories) of 350 kcal/day would cause body weight to increase by _____ .

A net gain (i.e. ,positive energy balance) of ____________kcal is required to add 1 pound of adipose tissue.

If you did not correct the underwater weight for the air remaining in the lungs at the time of measurement,you would underestimate body fatness.

Which of the following is the currently widely accepted anthropomorphic measurement method for the diagnosis of overweight and obesity?

A male with a body mass index of 29 kg/m² would be most accurately classified as

Quiz 19: Nutrition and Body Composition for Health

According to the energy balance equation,body weight would increase if ___________________________.

The basal metabolic rate is proportional to _________________.

The basal metabolic rate of a sedentary person is usually __________ percent of his or her total energy expenditure.

Body density is equal to__________________.

Non-shivering thermogenesis involves __________which is rich in ____________.

Calculate how much weight loss is required to achieve a body composition of 20% body fat given: Current body weight = 162 pounds Current percent body fat = 30% Given the above information,this individual would need to lose _____pounds of fat to achieve a body composition of 20% body fat.

The glycemic index is used to describe_______________________.

According to the nutrient balance model,which of the following nutrients,when consumed in excess,is most likely linked to weight gain?

Physical activity constitutes the most variable part of energy expenditure side of the energy balance equation.In fact,energy expenditure from physical activity can account for _______of the total energy expenditure.

Based on information from the National Weight Control Registry (the "successful losers") ,the duration of exercise each day associated with sustained weight loss is

Which of the following factors does NOT contribute to energy balance and potential weight gain?

A male college student practices caloric restriction (negative caloric balance of 500 calories per day) for 21 days.In theory,this individual should lose ______ pound(s) of fat at the completion of the 21 days.

Prolonged (several months) caloric restriction results in a reduction in the basal metabolic rate.The explanation for this decline in basal metabolic rate is linked to ______________.

Body density calculated from the sum of skinfolds can be converted to percent fat using the Siri equation.

The Daily Value (DV)is a standard used in food labeling and is based on a 2,000-kcal diet.

At the end of a 10 day period of overeating,a positive caloric balance (i.e. ,excess calories) of 350 kcal/day would cause body weight to increase by _____ .

A net gain (i.e. ,positive energy balance) of ____________kcal is required to add 1 pound of adipose tissue.

If you did not correct the underwater weight for the air remaining in the lungs at the time of measurement,you would underestimate body fatness.

Which of the following is the currently widely accepted anthropomorphic measurement method for the diagnosis of overweight and obesity?

A male with a body mass index of 29 kg/m2 would be most accurately classified as

Non-shivering thermogenesis involves which is rich in __.

A male with a body mass index of 29 kg/m² would be most accurately classified as