energy production Flashcards
(15 cards)
what does ATP stand for?
Adenosine Triphospahte
what does a ATP molecule consist of?
1 adenosine molecule and 3 phosphate joined together by high energy bonds
what is ATP?
the only direct source of energy that can be used by the body
how is energy created?
-ATP molecules broken down into ADP molecules and energy is released
-energy is created by breaking one of the high energy phosphate bonds
-for this to happen an enzyme is needed
what happens when energy is released?
-an ADP molecule+ a free phosphate remain
-body only stores limited amounts of ATP
-ATP needs to be continuously produced
-ADP+free phospahte need to ‘re-join’
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how do carbs play a part in energy?
-carbs=glucose
-body preffered fuel
-provided rapid energy source
-stored in body as glycogen
how do fats play a part in energy?
-fats=fatty acids
-an efficent, energy dense fuel source
-contains 2x as much energy per gram as carbs or protein
-stored as triglycerides
how does protein play a part in energy?
-protein=amino acids
-very rarely used as energy source
-must be processed in the liver to change structure before it can be used
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what does catabolism mean?
destructive metabolism
breaking down complex substances into simpler ones with the release of energy
what does anabolism mean?
constructive metabolism
the synthesis of complex substances from simpler ones
what does metabolism mean?
physical and chemical process that takes place in the body to maintain the breakdown of substances to provide energy and the synthesis of others to build tissues or re-supply energy levels
aerobic energy system
-used rest/low intensity
-durations of 1hr 20min ish
-uses carbs/fats/proteins
-by product of water/co2/heat
latic energy system
-used higher intensity
-60-90 seconds
-uses glycogen
-by product of latic acid
creatine phosphate system (ATP)
-high intensity/explosive
-6-10 seconds
-uses creatine phosphate
what is excess post exercise oxygen consumption?
the additional amount of oxygen required after exercise to return the body to its normal resting level