Question 1

The _____ gland produces the primary hormone that controls the metabolic rate.

Accepted Answer

The thyroid gland produces the primary hormone, thyroxine (T4), which plays a key role in regulating the metabolic rate of the body.

Question 2

Which of the following statements is true?

Accepted Answer

Eating a very-low-calorie diet can cause the body to conserve energy, leading to a reduction in metabolic rate as the body adapts to the lower energy intake.

Question 3

Basal metabolism includes energy needs for

Accepted Answer

Basal metabolism is the minimum amount of energy required to maintain basic bodily functions such as breathing, circulation, and cell production. It does not include energy used for physical activity, digesting food, or fidgeting. Therefore, the correct choice is A, which refers to the energy needed for breathing.

Question 4

Chester's BMI is 35.3.According to his food records,he consumes an average of 3600 kcal/day.He would like to lose 4 pounds in 4 weeks by reducing his caloric intake.Based on this information,Chester should consume an average of _____ kcal/day.

Accepted Answer

To lose 4 pounds in 4 weeks, Chester needs a caloric deficit of 14,000 kcal (since 1 pound of fat is approximately 3,500 kcal). This means he needs a deficit of 500 kcal/day (14,000 kcal / 28 days). Therefore, he should consume 3600 kcal/day - 500 kcal/day = 3100 kcal/day.

Question 5

Lester's BMI is 32.3.According to his food records,he consumes an average of 3600 kcal/day.He would like to lose 8 pounds in 4 weeks by reducing his caloric intake.Based on this information,Lester should consume an average of _____ kcal/day.

Accepted Answer

In order to lose weight, Lester needs to create a caloric deficit. One pound of body weight is equivalent to 3500 kcal. Lester wants to lose 8 pounds in 4 weeks, which means he needs to create a caloric deficit of 28,000 kcal (8 pounds x 3500 kcal/pound). To achieve this, he needs to reduce his daily caloric intake by 2000 kcal (28,000 kcal ÷ 4 weeks ÷ 7 days). Therefore, Lester should consume an average of 1600 kcal/day (3600 kcal/day - 2000 kcal/day). The correct answer is B) 2600 kcal/day is not sufficient for weight loss, 3600 kcal/day is his current intake and 4600 kcal/day is an increase in intake, which would not lead to weight loss.

Question 6

Liam's BMI is 33.0.According to his food records,he consumes an average of 3000 kcal/day.He would like to lose 4 pounds in 4 weeks by reducing his caloric intake.Based on this information,Liam should consume an average of _____ kcal/day.

Accepted Answer

To lose 4 pounds in 4 weeks, Liam needs a caloric deficit of 14,000 kcal (since 1 pound of fat is approximately 3,500 kcal). This means he needs a deficit of 500 kcal/day (14,000 kcal / 28 days). Therefore, he should consume 3000 kcal/day - 500 kcal/day = 2500 kcal/day.

Question 7

Which of the following statements is true?

Accepted Answer

As people age, their metabolic rates tend to slow down due to a natural decrease in muscle mass and increase in fat mass, which leads to a decrease in overall energy expenditure. A, B, and D are all false statements.

Question 8

Which of the following formulas is the best way to estimate your total daily energy needs accurately?

Accepted Answer

This is the most accurate formula because it considers all the factors that contribute to daily energy needs, including basal metabolism, physical activity, thermic effect of food and NEAT (non-exercise activity thermogenesis). By adding up all these factors, we can estimate the total amount of energy we need each day to maintain our weight.

Question 9

Which of the following statements is true?

Accepted Answer

Leptin is a hormone produced by fat cells that can reduce hunger by signaling the brain that the body has enough energy stored. Ghrelin is a hormone produced in the stomach that stimulates appetite. Satiety is the feeling of fullness that reduces the drive to eat. A positive energy state (i.e. consuming more calories than are being expended) typically leads to weight gain, not weight loss.

Question 10

Fred's BMI is 32.4,his waist circumference is 44 inches and his hip circumference is 40 inches.Based on this information,his body fat distribution is associated with a high risk of

Accepted Answer

Fred's BMI is in the obese range and his waist circumference is larger than his hip circumference, indicating an apple-shaped body fat distribution. This type of fat distribution is associated with a higher risk of cardiovascular disease. Pernicious anemia, elevated HDL cholesterol, and ulcerative colitis are not directly related to body fat distribution.

Question 11

Basal metabolism includes energy needs for

Accepted Answer

Basal metabolism refers to the energy needs required for essential bodily functions at rest, such as breathing, circulating blood, and maintaining body temperature. Digesting food, performing physical activity, and shivering in cold conditions are not part of basal metabolism, as they require additional energy expenditure beyond the basal metabolic rate.

Question 12

Which of the following substances is a major factor that influences a person's metabolic rate?

Accepted Answer

Thyroid hormone plays a major role in regulating metabolism. It stimulates the production of ATP, the body's energy currency, and influences the rate at which the body uses energy. Changes in thyroid hormone levels can cause shifts in metabolic rate, leading to weight gain or loss. Leptin, ghrelin, and salivary amylase are also involved in metabolism and appetite regulation, but they are not as significant in influencing metabolic rate as thyroid hormone.

Question 13

A scientist wants to develop a medication that safely reduces hunger to help obese people lose weight.Based on this information,this researcher will explore ways to stimulate the production,release,or action of

Accepted Answer

Leptin is a hormone produced by fat cells that helps regulate hunger and energy balance in the body. It signals the brain when the body has enough energy stored and can reduce appetite. Therefore, stimulating the release or action of leptin could be a potential way to reduce hunger safely and help obese people lose weight. Ghrelin, on the other hand, is a hormone that stimulates appetite and would not be a good target for reducing hunger. Glucagon and insulin are involved in regulating blood sugar levels and would not have a direct effect on hunger.

Question 14

Tim's body is shaped like a pear,because his excess body fat is distributed mostly below his waist.His body fat distribution is associated with

Accepted Answer

Pear-shaped body fat distribution is generally associated with fewer serious chronic health problems compared to apple-shaped distribution, where fat is concentrated in the upper body.

Question 15

A scientist wants to develop a medication that safely reduces hunger to help obese people lose weight.Based on this information,this researcher will explore ways to block the production,release,or action of

Accepted Answer

Ghrelin is a hormone produced in the stomach that stimulates appetite and promotes food intake. By blocking its production or action, a medication can safely reduce hunger, thereby helping obese people lose weight. Insulin and leptin also play a role in regulating appetite, but blocking their production or action may have unwanted side effects on glucose and energy metabolism. Thyroid hormone affects metabolism but does not have a direct effect on hunger or appetite. Therefore, ghrelin is the best choice for developing a medication that safely reduces hunger.

Question 16

Compared to other mice,a mouse that has a "thrifty metabolism"

Accepted Answer

A mouse with a "thrifty metabolism" is more efficient at storing energy and gains weight more easily than other mice. This type of metabolism evolved to help animals survive during times of food scarcity, but in modern times where food is readily available, it can lead to obesity and related health problems.

Question 17

While in class,Barry can't seem to sit still.He constantly taps his feet on the floor and frequently shifts his position.The energy Barry uses for these involuntary movements is classified as

Accepted Answer

NEAT (Non-exercise Activity Thermogenesis) is the energy expended for all activities other than exercise or sleeping, including fidgeting, tapping, and shifting positions. Therefore, the energy Barry uses for his involuntary movements is classified as NEAT. Basal metabolism refers to the energy expended for basic life-sustaining activities like breathing, heartbeat, etc. Resting metabolism refers to the energy expended for bodily functions while at rest. Thermic effect of food refers to the energy expended for digestion, absorption, and transport of food. None of these accurately describe the energy used for Barry's involuntary movements.

Question 18

Rebecca's BMI is 26.3.According to her food records,she consumes an average of 2600 kcal/day.She would like to lose 4 pounds in 8 weeks by reducing her caloric intake.Based on this information,Rebecca should consume an average of _____ kcal/day.

Accepted Answer

The answer of Rebecca's BMI is 26.3.According to her food...

Question 19

A pound of body fat provides about _____ kcal.

Accepted Answer

A pound of body fat provides about 3500 kcal. This is why we often hear the phrase "3500 kcal deficit or surplus equals one pound of weight loss or gain."

Question 20

Obese people are more likely to develop _____ than people who are not obese.

Accepted Answer

Obesity is a risk factor for gallbladder disease, as it can lead to the formation of gallstones. Obesity can also increase the risk of other conditions such as type 2 diabetes, heart disease, and certain types of cancer. A, C, and D are not directly linked to obesity.

Quiz 10: Nutrition for a Healthy Weight and Fit Body

The _____ gland produces the primary hormone that controls the metabolic rate.

Which of the following statements is true?

Basal metabolism includes energy needs for

Chester's BMI is 35.3.According to his food records,he consumes an average of 3600 kcal/day.He would like to lose 4 pounds in 4 weeks by reducing his caloric intake.Based on this information,Chester should consume an average of _____ kcal/day.

Lester's BMI is 32.3.According to his food records,he consumes an average of 3600 kcal/day.He would like to lose 8 pounds in 4 weeks by reducing his caloric intake.Based on this information,Lester should consume an average of _____ kcal/day.

Liam's BMI is 33.0.According to his food records,he consumes an average of 3000 kcal/day.He would like to lose 4 pounds in 4 weeks by reducing his caloric intake.Based on this information,Liam should consume an average of _____ kcal/day.

Which of the following statements is true?

Which of the following formulas is the best way to estimate your total daily energy needs accurately?

Which of the following statements is true?

Fred's BMI is 32.4,his waist circumference is 44 inches and his hip circumference is 40 inches.Based on this information,his body fat distribution is associated with a high risk of

Basal metabolism includes energy needs for

Which of the following substances is a major factor that influences a person's metabolic rate?

A scientist wants to develop a medication that safely reduces hunger to help obese people lose weight.Based on this information,this researcher will explore ways to stimulate the production,release,or action of

Tim's body is shaped like a pear,because his excess body fat is distributed mostly below his waist.His body fat distribution is associated with

A scientist wants to develop a medication that safely reduces hunger to help obese people lose weight.Based on this information,this researcher will explore ways to block the production,release,or action of

Compared to other mice,a mouse that has a "thrifty metabolism"

While in class,Barry can't seem to sit still.He constantly taps his feet on the floor and frequently shifts his position.The energy Barry uses for these involuntary movements is classified as

Rebecca's BMI is 26.3.According to her food records,she consumes an average of 2600 kcal/day.She would like to lose 4 pounds in 8 weeks by reducing her caloric intake.Based on this information,Rebecca should consume an average of _____ kcal/day.

A pound of body fat provides about _____ kcal.

Obese people are more likely to develop _____ than people who are not obese.