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HNF 150 Exam 3 Questions With Complete Solutions 2025
state the three components of body's energy expenditure and how much each
contributes to energy expenditure. - (answers)Basal Metabolic Rate (BMR) 60-
65%
Thermic Effect of Food (TEF) 5-10%
Voluntary Activities Intentional activities 25-35%
Describe the roles of BMR and several other factors in determining an individual's
daily energy needs. - (answers)The sum total of all involuntary activities that are
necessary for life, EXCEPT digestion and voluntary activities
Controlled by hormone produced by the thyroid gland Thyroxine
Age Height Growth Body composition Fever Stress Environmental temperature
Fasting/Starvation Malnutrition
BMR - (answers)the rate at which the body uses energy to support its basal
metabolism
BMI - (answers)an indicator of obesity or underweight, calculated by dividing the
weight of a person by the square of the person's height
Hunger - (answers)an involuntary lack of sufficient quantity or quality of food
Appetite - (answers)the psychological desire to eat
Skinfold test - (answers)measurement of the thickness of a fold of skin and
subcantaous fat
, 2
Underwater weighing - (answers)body weight below a healthy weight
Dual energy X-ay absorptiometry (DEXA) - (answers)a noninvasive method of
determing total body fat, fat distribution and bone density by passing two low-dose
x-ray beams through the body
Visceral fat - (answers)fat stored within the abdominal cavity in association with
the internal abdominal organs
Subcutaneous fat - (answers)fat stored directly under the skin
Waist circumference/central obesity - (answers)a measurement of abdominal girth
that indicates visceral fatness
Anorexia nervosa - (answers)an eating disorder characterized by a refusal to
maintain a minimally normal body weight
Bulimia nervosa - (answers)recurring episodes of binge eating combined with a
morbid fear of becoming fat, followed by self-induce purging
Binge eating disorder - (answers)an eating disorder whose criteria are similar to
those of bulimia nervosa, excluding the purging
, 3
weight cycling - (answers)repeated rounds of weight loss and subsequent regains,
with reduced ability to loss weight with each attempt
Describe the major roles of water - (answers)Solvent—dissolves solutes n Carries
nutrients Waste removal
Participates in chemical reactions
Lubricant around joints
Shock absorber
Body temperature regulation
Identify the causes, signs and symptoms of dehydration - (answers)Mild (loss of
<5% body wt)
Thirst
Dry mouth
Dry skin
Fatigue
Decreased urine output
Deep yellow urine
Headache
Dizziness
Severe (loss of >5% body wt)
Blood pressure decreases
Increased pulse
HNF 150 Exam 3 Questions With Complete Solutions 2025
state the three components of body's energy expenditure and how much each
contributes to energy expenditure. - (answers)Basal Metabolic Rate (BMR) 60-
65%
Thermic Effect of Food (TEF) 5-10%
Voluntary Activities Intentional activities 25-35%
Describe the roles of BMR and several other factors in determining an individual's
daily energy needs. - (answers)The sum total of all involuntary activities that are
necessary for life, EXCEPT digestion and voluntary activities
Controlled by hormone produced by the thyroid gland Thyroxine
Age Height Growth Body composition Fever Stress Environmental temperature
Fasting/Starvation Malnutrition
BMR - (answers)the rate at which the body uses energy to support its basal
metabolism
BMI - (answers)an indicator of obesity or underweight, calculated by dividing the
weight of a person by the square of the person's height
Hunger - (answers)an involuntary lack of sufficient quantity or quality of food
Appetite - (answers)the psychological desire to eat
Skinfold test - (answers)measurement of the thickness of a fold of skin and
subcantaous fat
, 2
Underwater weighing - (answers)body weight below a healthy weight
Dual energy X-ay absorptiometry (DEXA) - (answers)a noninvasive method of
determing total body fat, fat distribution and bone density by passing two low-dose
x-ray beams through the body
Visceral fat - (answers)fat stored within the abdominal cavity in association with
the internal abdominal organs
Subcutaneous fat - (answers)fat stored directly under the skin
Waist circumference/central obesity - (answers)a measurement of abdominal girth
that indicates visceral fatness
Anorexia nervosa - (answers)an eating disorder characterized by a refusal to
maintain a minimally normal body weight
Bulimia nervosa - (answers)recurring episodes of binge eating combined with a
morbid fear of becoming fat, followed by self-induce purging
Binge eating disorder - (answers)an eating disorder whose criteria are similar to
those of bulimia nervosa, excluding the purging
, 3
weight cycling - (answers)repeated rounds of weight loss and subsequent regains,
with reduced ability to loss weight with each attempt
Describe the major roles of water - (answers)Solvent—dissolves solutes n Carries
nutrients Waste removal
Participates in chemical reactions
Lubricant around joints
Shock absorber
Body temperature regulation
Identify the causes, signs and symptoms of dehydration - (answers)Mild (loss of
<5% body wt)
Thirst
Dry mouth
Dry skin
Fatigue
Decreased urine output
Deep yellow urine
Headache
Dizziness
Severe (loss of >5% body wt)
Blood pressure decreases
Increased pulse
