Download Q14to17

Questions 14 - 17
Energy Expenditure Themes
14. BMR
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Which statement regarding Basal Metabolic
Rate (BMR) is CORRECT?
A. Whole body BMR is generally lower in people who
weigh more goes up with weight
yes, 60% of daily EE
B. BMR contributes more to whole body energy
expenditure than diet induced thermogenesis
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C. BMR is assessed by comparing food intake to
weight gain
no, calorimetry
D. BMR is inversely proportional to lean body mass
directly!
E. Thyroid hormone lowers BMR
they increase BMR!
15. Fuel Stores
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Which statement is CORRECT?
A. Brain can use fatty acids
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big NO!!!
B. Fatty acids can be converted into glucose big NO!!!
C. Muscle glycogen is the major carbohydrate reserve
for the brainalthough lots of glycogen in muscle, can’t access
D. The total amount of glycogen stored in muscle is
less than the total amount stored in liver no 250g vs 100g
E. There is no specific protein that represents a store
of amino acids
a true negative statement!!
16. Measuring Metabolic Rate
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Both indirect calorimetry and the doubly-labeled water
(D2O18) methods can be used to assess whole body
energy expenditure. Which statement is CORRECT?
A. Only indirect calorimetry can give an indication of which fuels
are being burnt
yes. RQ carbs is 1, fat is 0.7
B. The doubly-labeled water method measures oxygen production
no, carbon dioxide
C. The doubly labeled water method can be done over a shorter
time frame than indirect calorimetry
no, much longer
D. Only the doubly labeled water method can be used to determine
basal metabolic rate
no, multicomponent
E. Indirect calorimetry only works if the subject has consumed
carbohydrates, not fat.
a silly statement!
17. Leptin
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Which of the following statements regarding
leptin is CORRECT?
A. Leptin is secreted by the β-cells of the pancreas in
response to a carbohydrate meal
no, by WAT
B. Obese subjects have a lower blood leptin
concentration than non-obese subjects no, much higher
C. Obese subjects are hyper-responsive to leptin
no, resistant
D. A lack of leptin will cause ravenous hunger
absolutely
E. In rodents, leptin inhibits thermogenesis in brown
adipose tissue
stimulates energy expenditure