1.5 energy systems Flashcards
Where the energy we use for muscle contractions comes from
ATP (adenosine triphosphate)
Why the energy for muscle contractions must come from ATP
ATP is the only usable form of energy in the body
The type of energy which ATP provides
Chemical energy
Where the energy used to form ATP comes from
From the breakdown of carb.s (glucose)
The main components of an ATP molecule
An adenosine molecule + 3 phosphates
How energy stored in ATP is released
By breaking the bonds within the molecule
The type of molecule which is used to break down compounds
Enzymes
The enzyme used to break down ATP
ATPase
What ATP is broken down into
ADP and Pi
What Pi means
An inorganic phosphate
The number of types of chemical reactions which allow our body to constantly resynthesise ATP from ADP & Pi
3
The 3 types of chemical reactions which resynthesise ATP
The aerobic system, ATP-PC system and the anaerobic glycolytic system
The type of fuel which is used by the aerobic and anaerobic glycolytic systems
Food
The fuel for the ATP-PC system
Phosphocreatine
The tissue where phosphocreatine is found
Muscles
What the energy systems use their fuels to produce
Energy/ATP
The energy systems involved in anaerobic energy production
The anaerobic glycolytic system and the ATP-PC system
What it’s important to remember during any exercise intensity about energy systems
All the energy systems will be involved, no matter the intensity, just in different proportions
The exercise intensity and duration where the aerobic system is the preferred energy pathway
Long and low intensity
The main fuel used by the aerobic energy system
Glucose
The most efficient energy system
The aerobic system
What the aerobic system breaks glucose down into
CO2 and water
What you can call the breakdown of glucose in the aerobic system
The oxidation of glucose
The number of molecules of ATP which can be produced by the aerobic system
38