7.ATP

CATEGORY:

•Energy Pathways

DEFINITION:

•Adenosine Triphosphate is the crucial form of released energy

FUNCTION:

•Energy provision for movement

•Hormone production

•Cellular signalling for storage or usage

ACTION:

•ATP produced when Glucose and other Nutrients (Protein, Carbs, Fat) are chemically burned

•Cells consume ATP during molecular synthesis and bodily movement, releasing ATP's energy

•Spent ATP becomes ADP (ATP-PC cycle) and is re-synthesised by Phosphocreatine immediately 

FACTS:

•Glucose is a most important source of cellular energy...when broken down, Carbon Dioxide & H2O is produced as waste

•1molecule of Glucose = 30mols ATP Aerobic Pathways

•1molecule of Glucose = 2mols ATP during Anaerobic Pathways

MANIPULATION:

•Muscular contraction utilises large amounts of ATP

•ATP stores depleted (but refilled rapidly) in first few seconds of exercise, followed by Phosphocreatine...Glycogen then becomes the substrate used for ATP synthesis

•ATP-PC Cycle replenished after 2mins rest

DIETING:

•ATP in cells determines if energy is stored or used...if ATP stores are full the body is instructed to store rather than burn Nutrients

-Deplete ATP stores to signal body to provide cells with ATP for immediate use

RELATED TO:

•Metabolism

•Glucose

•Glycogen

•Nutrients

•Training

•Metabolic Pathways

•Phosphocreatine

•ATP-PC Cycle

NOTES: