75 - Energy in Food and the Basal Metabolic Rate Flashcards
1
Q
Atwater factor of fat
A
37 kJ/g
2
Q
Atwater factor of carbohydrates
A
17 kJ/g
3
Q
Atwater factor of protein
A
16 kJ/g
4
Q
Metabolism of alcohol
A
Converted to acetate, which is either used for energy or stored as fat.
5
Q
Specific dynamic effect
A
Postprandial thermogenesis.
Heat generated in digesting food.
Usually 8-10% of energy turnover.
6
Q
Basal metabolic rate
A
Energy required to sustain life.
Measured at rest, 12 hours after eating, at a temperature of 25-30 degrees.
7
Q
Kleiber’s law
A
In mammalian species, food requirements are closely correlated with weight^0.73
8
Q
Effect of increasing adiposity on BMR
A
Decreases BMR.
Need little energy to store TAGs, and also insulates.
