IRAT 8 Flashcards
What is the function of a bomb calorimeter?
A. it determines how many kcalories are spent when performing a specific exercise
B. it determines the umber of calories in a particular food
C. it is a way to “burn off” excess calories
D. it calculates a persons set point
E. it can be used to provide a daily gauge of energy intake
B.
“Bones, muscles, and all tissue except adipose tissue” What is being described?
A. A component of the body that tends to decrease in size with aging
B. a component of the body that tends to increase in size with starvation
C. A component of the body that tends to increase in size exercise
D. Both A and C
D.
With respect to diet induced thermogenesis, dietary fat as a lower metabolic cost than protein. What does this mean?
A. it requires more energy to oxidize or store dietary fat than protein
B. it requires less energy to oxidize and store dietary fat than protein
C. fat metabolism generates more toxic metabolic wastes than protein metabolism
D. fat metabolism generates less toxic metabolic wastes than protein metabolism
E. Both B and D
B.
For which of the following would the recommend energy intake, per unit of body weight, be the lowest?
A. 80 year old female
B. 2 month year old infant
C. 26 year old woman, in third trimester of pregnancy
D. 15 year old male
E. 25 year old Olympian woman cyclist
A.
Which statement best describes fat and carb metabolism in the fasting state?
A. muscle proteins and glycogen are converted to glucose; adipose tissue releases fatty acids into blood
B. muscle proteins are converted to glucose, while glycogen remains in the liver, un-metabolized. Adipose tissue releases fatty acids
C. There is no carb metabolism in the fasting state; instead adipose tissue releases fatty acids and ketone bodies as sources of energy
D. muscle proteins and glycogen are converted to fatty acids; adipose tissue converts glycerol not glucose
A.
What is the stimulus which prompts one to eat in response to internal physical cues? A. appetite B. hunger C. behavioural modification D. satiety E. neuropeptide Y
B.
Which strategy is least likely to held Canadians became thinner? A. improve food choices B. reduce serving sizes C. increase physical activity D. use smaller plates E. sleep 12 hours a night
E.
What effect does brown adipose tissue have on a persons tendency to gain weight?
A. the tendency to gain weight is increased because energy expenditure increases
B. the tendency to gain weight is unchanged
C. the tendency to gain weight is reduced because energy expenditure decreases
D. the tendency to gain weight is reduced because energy expenditure increases
D.
Ryan would like to lose weight. His energy needs are 2400 kcal/day. If he eats about 1900 kcal/day, in four weeks approx. how much weight will Ryan have lost due to changes in his diet? Assume 0.5 kg fat = 3500 kcal A. 1 kg B. 2 kg C. 4 kg D. 6 kg E. 8 kg
B.
What is the main problem associated with very low energy diets?
A. they promote adaptive mechanisms that reduce energy expenditure making continuing weight loss difficult
B. initial weight loss is due to fat loss but then reverts to water loss
C. they increase metabolic rates
D. they promote sodium excretion
E. they can result in diabetes because beta cell production of insulin is suppressed
A.
What is the total energy content of an energy bar that contains 5 grams of fat, 30 grams of carbohydrate and 10 grams of protein?
a. 195
b. 205
c. 213
d. 255
e. 287
B
which of the following methods divides body composition into three components?
a. dual energy x-ray absroptiometry
b. the bod pod (aha)
c. underwater weighing
d. bioeletical impedance
e. BMI
A
according to BMI criteria, an adults with a BMI of 18 would be defined as…
a. morbidly obese
b. obese
c. overweight
d. healthy weight
e. underweight
E
one factor that can result in an increase in body weight as people age is…
a. a decrease in food intake
b. an increase in exercise
c. a decrease in BMR
d. an increase in BMR
C
which nutrient has the lowest metabolic cost?
a. carbohydrate
b. protein
c. fat.
d. water
D
