Role of Energy in the Body (Leaving Cert Home Economics): Flashcards
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15 cards from this deck
Three macronutrients that provide energy
Three macronutrients that provide energy
Carbohydrates, proteins, and fats
Body's preferred energy source
Body's preferred energy source
Carbohydrates
% of daily energy brain consumes
% of daily energy brain consumes
Approximately 20%
Energy density: fats vs carbs/proteins
Energy density: fats vs carbs/proteins
Fats contain more than twice the energy per gram
Four fat-soluble vitamins
Four fat-soluble vitamins
A, D, E, and K
Primary function of proteins
Primary function of proteins
Body repair and growth
BMR (Basal Metabolic Rate) definition
BMR (Basal Metabolic Rate) definition
Minimum energy needed at complete rest
Effect of age on BMR
Effect of age on BMR
BMR decreases as we get older
Gender with higher BMR
Gender with higher BMR
Males generally have higher BMRs than females
Body composition factor that increases BMR
Body composition factor that increases BMR
More muscle tissue
Three groups needing extra energy for growth
Three groups needing extra energy for growth
Children, adolescents, and pregnant women
1 kilocalorie equals how many kilojoules
1 kilocalorie equals how many kilojoules
Approximately 4.2 kilojoules
Energy balance definition
Energy balance definition
Energy intake equals energy expenditure
Result of positive energy balance
Result of positive energy balance
Weight gain
Result of negative energy balance
Result of negative energy balance
Weight loss