Chapter 8

25 July 2022
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question
About ____________________ of the energy the average person expends in a day supports the body's basal metabolism.
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2/3
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The amount of energy in a 1000-kcalorie meal that is expended as specific dynamic activity
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100
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Why might the measurement of the resting metabolic rate in a person be somewhat higher than her basal metabolic rate?
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She has eaten right before the measurement is performed.
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According to much research, what is a characteristic of excess body fat that is distributed primarily around the abdomen?
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It is associated with increased mortality for both sexes.
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What is a characteristic of excess intra-abdominal fat?
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Some (but not all) research suggests that it is more harmful than fat in other locations.
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Energy needed to maintain the body at rest
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Basal metabolism
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Irritating sensation that initiates thoughts of food
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Hunger
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Which process best describes thermogenesis?
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Generation of heat
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What is the main explanation for the difference in basal metabolic rates between males and females of the same body weight?
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Males have a higher percentage of lean body mass
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What is a common method used to assess body fat?
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Air displacement plethysmography
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After a meal, the feeling of ____________________ continues to suppress hunger and allows a person to not eat again for a while.
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satiety
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Eating in response to arousal
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Stress eating
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What is the ideal range of body fat content for women between 20 and 39 years of age?
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23-26%
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Which factor has the most influence on the body's metabolic rate?
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Amount of lean body tissue
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Eating in response to the time of day
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External cue
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What term describes the increase in energy expenditure that occurs in a person who fractures a leg?
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Adaptive thermogenesis
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The amount of energy that the body derives from foods is known as the ____.​
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physiological fuel value
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What is the approximate body mass index of a woman who is 5'5" and 125 lbs?
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21
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____________________ refers to adjustments in energy expenditure related to changes in environment such as extreme cold and to physiological events such as overfeeding, trauma, and changes in hormone status.
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Adaptive thermogenesis
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What would be the approximate weight gain of a person who consumes an excess of 500 kcalories daily for one month?
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4 lbs
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Technique used to measure the amount of oxygen consumed when a food burns
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Indirect calorimetry
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Approximate number of kcalories in 2 pounds of body fat
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7000
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Maximum thermic effect of alcohol as percentage
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20
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Approximate number of kcalories per minute expended by a person with a total daily energy need of 2900 kcalories
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2
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Term that describes the energy needed to process food
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Thermic effect
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An individual with a BMI of less than ____________________ is said to be underweight.
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18.5
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As receptors in the stomach stretch and hormones such as cholecystokinin become active and prompt a person to stop eating, the person experiences ____________________.
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satiation
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A person is at high risk for signs of illness and diminished work capacity when the BMI first drops below ____.​
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17
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Changes in energy expenditure consequent to changes in environment
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Adaptive thermogenesis
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What fraction of the day's energy expenditure of the average person is represented by the basal metabolism?​
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About 2/3
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Lower range of body fat percentage in normal-weight men
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18
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There is a high risk of obesity-related health problems when a man's waist circumference begins to exceed ____.​
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40 inches
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Among the following groups, which has the highest metabolic rate?​
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Younger individuals
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____________________ refers to the energy (kcalories) consumed from foods and beverages compared with the energy expended through metabolic processes and physical activities.
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Energy Balance
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What method is used to measure the amount of heat given off by the body?​
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​Direct calorimetry
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If a dancer and a typist are the same height and have the exact same body build, the dancer will be heavier because she has ____.​
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more muscle mass
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Visceral fat is stored chiefly ____.​
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around the abdominal organs
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The desire to eat a slice of chocolate cake after consuming a very large meal best illustrates which state?​
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appetite
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What is a consequence of losing excess body weight?​
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It reverses atherosclerosis.
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Body mass index of an adult of 180 lbs and 5 ft 11 in
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25
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High-fat foods stimulate the appetite mostly because they ____.​
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are flavorful
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Synonymous with the thermic effect of food
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Specific dynamic effect
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The nerve signals and chemical messengers associated with hunger originate and act primarily in the brain structure called the ____________________.
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hypothalamus
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A feeling of fullness after eating
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Satiety
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Which statement is true of body mass index?
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It correlates with disease risks.
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The weight of a body minus the fat content is known as the ____.​
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lean body mass
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What is a feature of the basal metabolic rate (BMR)?​
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Pregnancy increases the BMR.
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The brain chemical neuropeptide Y is known to specifically enhance the craving for ____.​
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carbohydrate
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An individual with a BMI of ____________________ or more is said to be obese.
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30
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A factor that raises basal metabolism
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Caffeine
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Jacki, who has a sedentary lifestyle, is 5'5" tall and weighs 165 lbs. She calculated her BMI to be 27.5. She recognizes that her body weight is unhealthy and vows to improve her eating habits and begin a regular program of physical fitness. Her goal is to achieve a BMI of 22. Approximately how much weight (lbs) must she lose?​
answer
33
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According to much research, in what region of the body is the storage of excess body fat associated with the highest risks for cardiovascular disease?​
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Abdomen
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Technique used to measure the amount of heat given off when a food burns
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Direct calorimetry
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Response to the smell of favorite food
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Appetite
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Research in obese people seems to show that there is less susceptibility to health problems provided that the excess body fat is distributed around the ____.​
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hips and thighs
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What is a significant factor associated with the interpretation of body composition values?​
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Muscular people may be classified as overweight.
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To assess body weight, health-care professionals most easily use BMI and ____.​
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waist circumference
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A factor that lowers basal metabolism
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Fasting
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Which of the following defines central obesity?​
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Storage of excess fat around the trunk of the body
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Within what range would a young women with 30% body fat and young men with 20% body fat be found?​
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Average
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What is the most satiating macronutrient?
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Protein
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Which statement correctly identifies a specific food intake behavior?​
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A desire to eat without feelings of hunger is called appetite
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An index of a person's weight in relation to height is called ____.
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body mass index
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The day after Thanksgiving, you and your sisters are feeling hungry and want to eat leftovers before going shopping. Which food would most readily satisfy the feeling of hunger?​
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Turkey
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Among the following, which has the greatest power to suppress hunger?​
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Apples
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What is the range of body fat content for normal-weight men 20-39 years of age?​
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18-21%
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Which hormone is most responsible for signaling satiety as well as reducing food intake during a meal?​
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Cholecystokinin
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_____ is second only to _____ in causing premature deaths.​
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Obesity; tobacco
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Which measurement may be used to calculate the amount of energy expended by the body?​
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Oxygen consumed
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____________________ is an estimation of the energy required to process food (digest, absorb, transport, metabolize, and store ingested nutrients);
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Thermic effect of food
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Which measurement can be used to gauge the amount of a person's abdominal fat?​
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Waist circumference
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The percentage decline in basal metabolism per decade of adult life
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5
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The number of kcalories that the body derives from a food is termed its ____________________.
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physiological fuel value
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Which measurements are all used to compute a woman's BMR?​
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Body weight, height, and age
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A high risk of weight-related health problems is seen in women whose waist circumference begins to exceed ____.​
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35 inches
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Which process best describes thermogenesis?​
answer
Generation of heat
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____________________ refers to adjustments in energy expenditure related to changes in environment such as extreme cold and to physiological events such as overfeeding, trauma, and changes in hormone status.
answer
Adaptive thermogenesis
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What would be the approximate weight gain of a person who consumes an excess of 500 kcalories daily for one month?​
answer
4 lbs
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What best explains the relationship between excess body fat and higher risk for cancers of the female reproductive system?​
answer
D. ​Excess body fat produces more estrogen, which may promote tumor development.
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What term best describes a failure of the body's cells to respond to secretion of insulin?​
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c. ​Insulin resistance
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What is a characteristic of excess intra-abdominal fat?​
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a. ​Much research suggests that it is more harmful than fat in other locations.
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For every decade after early adulthood, what is the percentage decrease in BMR?​
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b. ​5%