Question 1

Which group has a higher metabolic rate?
A) people who exercise on a regular basis
B) people with a history of weight loss
C) women as compared to men
D) sedentary people

Accepted Answer

People who exercise on a regular basis typically have a higher metabolic rate compared to those who are sedentary, have a history of weight loss, or when comparing women to men, as regular exercise increases muscle mass and improves metabolic efficiency.

Question 2

Which is an example of a snack that is low in energy density?
A) an apple
B) crackers
C) a cookie
D) an ice cream cone

Accepted Answer

An apple is low in energy density because it has a high water content and fiber, which provides volume and makes you feel full with fewer calories compared to the other options listed.

Question 3

Many experts maintain that U.S. agricultural policy encourages farmers to focus on ________ and related byproducts rather than on fruits and vegetables.
A) dairy
B) beef
C) corn
D) pork

Accepted Answer

U.S. agricultural policy has historically provided significant subsidies for corn production, encouraging farmers to focus on corn and its related byproducts over fruits and vegetables. Corn is a major feed grain for livestock and a key ingredient in many processed foods, making it a versatile and economically attractive crop for farmers under these policies.

Question 4

People tend to feel most full when they eat foods high in
A) protein.
B) fat.
C) carbohydrates.
D) fiber.

Accepted Answer

Protein takes longer to digest than carbohydrates or fats, which helps people feel full for longer periods of time.

Question 5

Body mass index (BMI) is most useful for assessing the health risks of
A) muscular athletes.
B) average people.
C) people under 5 feet tall.
D) older adults with little muscle mass.

Accepted Answer

BMI is most useful for assessing the health risks of average people because it provides a general measure of body fat based on height and weight. It is less accurate for individuals with atypical body compositions, such as muscular athletes, very short individuals, or older adults with little muscle mass.

Question 6

Which statement is true regarding psychological and social factors in eating behaviors?
A) Food is rarely used to help deal with stress.
B) Binge eating usually indicates extreme hunger.
C) Changing eating patterns that are linked to cultural values is usually easy.
D) Food is often associated with social gatherings.

Accepted Answer

Food is commonly associated with social gatherings, such as parties, holidays, and family events, where it plays a central role in the celebration and social interaction. This association is a well-documented aspect of eating behavior, reflecting the social and cultural dimensions of food consumption.

Question 7

Energy density is a measure of the ________ per ounce or gram of food.
A) fiber
B) fat
C) calories
D) vitamins

Accepted Answer

Energy density refers to the amount of energy (calories) in a given weight (ounce or gram) of food.

Question 8

Which is the largest component of metabolism, accounting for about 65% to 70% of daily energy expenditure?
A) physical activity
B) food digestion
C) resting metabolism
D) weight cycling

Accepted Answer

Resting metabolism, also known as basal metabolic rate (BMR), is the largest component of metabolism, accounting for about 65% to 70% of daily energy expenditure. It represents the energy required to maintain vital body functions while at rest, such as breathing, circulation, and cell production.

Question 9

Since 1983, about how much has the average daily caloric intake among Americans increased?
A) 5%
B) 10%
C) 15%
D) 20%

Accepted Answer

Since 1983, the average daily caloric intake among Americans has increased by approximately 20%. This increase is attributed to various factors, including changes in dietary habits, food availability, and portion sizes.

Question 10

Which statement about genetic factors in obesity is true?
A) The genetic contribution to obesity is about 75%.
B) The weight of an adopted child is more similar to the weights of the adoptive parents.
C) Researchers have identified a single gene responsible for obesity.
D) Genetic factors influence where on the body extra weight is added.

Accepted Answer

Genetic factors can influence the distribution of body fat, determining where extra weight is likely to be added on the body.

Question 11

Which term refers to the situation in which you burn more calories than you consume?
A) positive energy balance
B) neutral energy balance
C) negative energy balance
D) metabolic balance

Accepted Answer

Negative energy balance occurs when the body burns more calories than it consumes, leading to a decrease in body weight.

Question 12

Research shows that people who lose weight and do not regain it usually burn about 2,800 calories per week in physical activity, which is the equivalent of about one hour of ________ every day.
A) light activity
B) running
C) weightlifting
D) brisk walking

Accepted Answer

Brisk walking for about an hour each day can burn approximately 400 calories, which totals around 2,800 calories per week, aligning with the research findings.

Question 13

What is the best way to control one's body weight?
A) Balance calories consumed with calories expended.
B) Follow the latest commercial weight loss program.
C) Take dietary supplements and eat a low-calorie diet.
D) Consume a low-carbohydrate diet.

Accepted Answer

Balancing calories consumed with calories expended is the most effective and sustainable method for controlling body weight. This approach involves adjusting dietary intake and physical activity to achieve and maintain a healthy weight.

Question 14

Which pattern of eating is best for weight management?
A) one small meal per day
B) small, frequent meals
C) three larger meals per day
D) one large meal in the evening

Accepted Answer

Small, frequent meals can help in managing hunger and controlling portion sizes, which are key factors in weight management. This approach can also help in maintaining steady blood sugar levels throughout the day.

Question 15

According to the National Institutes of Health, approximately what percentage of American adults are overweight?
A) 30%
B) 50%
C) 70%
D) 90%

Accepted Answer

Approximately 70% of American adults are considered to be overweight or obese according to the National Institutes of Health.

Question 16

What is one effect of having more muscle mass?
A) It lowers the resting metabolic rate.
B) It raises the resting metabolic rate.
C) It requires more fat in the diet.
D) It makes it easier to gain weight.

Accepted Answer

Having more muscle mass raises the resting metabolic rate because muscle tissue burns more calories at rest compared to fat tissue.

Question 17

What percentage of weight loss is enough to reduce health risks and increase life expectancy in obese individuals?
A) 5% to 10%
B) 15% to 20%
C) 25% to 30%
D) 35% to 40%

Accepted Answer

Losing 5% to 10% of body weight can significantly reduce health risks and increase life expectancy in obese individuals. This amount of weight loss can improve cardiovascular health, reduce the risk of diabetes, and improve metabolic health among other benefits.

Question 18

The occurrence of obesity is greatest in
A) upper-income households.
B) women in upper-income households.
C) moderate-income households.
D) low-income households.

Accepted Answer

The occurrence of obesity is greatest in low-income households due to factors such as limited access to healthy foods, high levels of stress, and fewer opportunities for physical activity.

Question 19

According to a 2016 Nielsen report, the average American spends about ________ hours per day on screen time-using smartphones, computers, televisions, video games, and other electronic devices.
A) 4.5
B) 6.5
C) 8.5
D) 10.5

Accepted Answer

According to the 2016 Nielsen report, the average American spends about 10.5 hours per day on screen time, which includes the use of smartphones, computers, televisions, video games, and other electronic devices.

Question 20

Which hormone is believed to be linked to obesity?
A) leptin
B) adrenaline
C) epinephrine
D) creatine

Accepted Answer

Leptin is a hormone produced by fat cells that is involved in the regulation of body weight. It signals the brain to reduce appetite and increase the amount of energy used, thus playing a key role in maintaining body weight. Dysregulation of leptin or resistance to its effects is believed to be linked to obesity.

Quiz 9: Weight Management

Which group has a higher metabolic rate?

Which is an example of a snack that is low in energy density?

Many experts maintain that U.S. agricultural policy encourages farmers to focus on ________ and related byproducts rather than on fruits and vegetables.

People tend to feel most full when they eat foods high in

Body mass index (BMI) is most useful for assessing the health risks of

Which statement is true regarding psychological and social factors in eating behaviors?

Energy density is a measure of the ________ per ounce or gram of food.

Which is the largest component of metabolism, accounting for about 65% to 70% of daily energy expenditure?

Since 1983, about how much has the average daily caloric intake among Americans increased?

Which statement about genetic factors in obesity is true?

Which term refers to the situation in which you burn more calories than you consume?

Research shows that people who lose weight and do not regain it usually burn about 2,800 calories per week in physical activity, which is the equivalent of about one hour of ________ every day.

What is the best way to control one's body weight?

Which pattern of eating is best for weight management?

According to the National Institutes of Health, approximately what percentage of American adults are overweight?

What is one effect of having more muscle mass?

What percentage of weight loss is enough to reduce health risks and increase life expectancy in obese individuals?

The occurrence of obesity is greatest in

According to a 2016 Nielsen report, the average American spends about ________ hours per day on screen time-using smartphones, computers, televisions, video games, and other electronic devices.

Which hormone is believed to be linked to obesity?