ATP Flashcards
Primary Source of ATP in Aerobic Metabolism
Carbohydrates
Fatty acids and protein can also be used
Primary energy source during low intensity activity
Fatty Acids
Low intensity activity, long period of time
Fat reserves in the body being almost unlimited
___ represents 80% of the final product of cabohydrate digestion
glucose
Glucose, after absorption into the cells, it can be used _____, or stored in the form of
immediately; glycogen
Energy derived from food without using oxygen
Anaerobic
Energy derived from food by oxidative metabolism
Aerobic
Under Anaerobic conditions, ____ are the only significant source of energy
Carbohydrates
____ best source of energy under anaerobic conditions because it is already phosphorylated
Gylcogen
Whereas glucose must be phosphorylated a step requiring expenditure of energy
true
_____ energy is used during strenuous burst of activity
Anaerobic
_____ processes are too slow to provide the energy required for a burst activity
Oxidative processes
Energy burst myst be supplied from
- ATP present in the cells
- Phosphocreatine
- Glycolytic breakdown of glycogen to lactic
____ is the source of energy for all muscle contraction
ATP
_____ carries a high energy bond similar to that of ATP but has more free energy
Phosphocreatine
Energy released from _______ causes bonding of new phosphate ion to ADP to reconstitute ATP
Phosphocreatine
Combined energy of ATP and _____ causes maximal contraction for 5-8 seconds
phosphocreatine
Breakdown of _____ to lactic and pyruvic acid liberates energy that is used for conversion of ADP to ATP
glycogen
The ____ reactions can occur in the absence of oxygen
glycolytic
Glycolysis alone can sustain max muscle contraction for only about 1 minute
true
_____ metabolism occurs when oxygen is combined with foodstuffs to liberate ATP
Oxidative
Sustained, long term contraction derived from ____
oxidative metabolism
