Unit Two Study Deck Flashcards
(15 cards)
Factors: how the energy is used
basal metabolic rate, physical activity, thermal effect of food
Basal metabolic rate (Bmr)
Bodily functions that sustain life, accounts for 60-75% of total energy usage
Total energy expenditure
The amount of energy you need/use in a day
Physical activity
Exercise increases metabolism, bigger muscle to fat ratio increases metabolism, age decreases metabolism. 15 - 30 % of total energy required
Thermic effect of food (Tef)
Energy requirements increased lefter a meal due to digesting, absorbing, metabolizing, 5 - 10% of total energy
Metabolism
Chemical reactions change of transfer matter and energy in the cell → metabolic pathways
Energy
“Capacity to do work”
ATP
Adenosine triphosphate, primary source of free energy in living cells, ADP plus inorganic phosphate
Aerobic cellular respiration
C6H1206 & 602 → 6C02 & 6H20, oxygen is used
Catabolic, anabolic
Breaks them down, makes larger molecules
Where does pyruvate oxidation happen
Mitochondrial matrix
Where does krebs cycle happen
Mitochondrial matrix
Where does etc happen
Inner mitochondrial membrane
