Energy in Food and the Basal Metabolic Rate Flashcards
1
Q
What is macronutrition?
A
obtaining energy to fuel normal activity
2
Q
How much dietary energy does an adult require per day?
A
10MJ
3
Q
What is the basal metabolic rate?
A
the minimum energy required to sustain life - to pump blood, sustain cellular processes, and maintain 37 degrees
4
Q
How much of daily energy expenditure does exercise make up?
A
less than 40%
5
Q
What is the first law of thermodynamics?
A
energy is constant - it can neither be created or destroyed
6
Q
Which macronutrient has the most kilojoules per gram?
A
fat
7
Q
How much energy is supplied by 1 gram of alcohol?
A
30kJ
8
Q
What is the specific dynamic effect?
A
post prandial thermogenesis
9
Q
What effects basal metabolic rate?
A
age, body fat, gender
10
Q
What percentage of the basal metabolic rate is used by the brain?
A
20%
