Energy for Exercise Flashcards
Define metabolism
the chemical processes that occur within a cell to maintain life. Some substances are broken down to provide energy while others are resynthesised to store energy.
Define adenosine triphosphate
ATP
a high compound which is the only immediately available source of energy for muscular contraction
Define enzyme
biological catalyst which increases the speed of chemical reactions
Define ATPase
an enzyme which catalyses the breakdown of ATP
Define exothermic reaction
a chemical reaction which releases energy
Define adenosine diphosphate
a compound formed by the removal of a phosphate bond from ATP
What is energy?
it is the capacity to form work
3 different forms of energy
chemical
potenital
kinetic
How do the different forms of energy work together?
chemical in the food we eat, stored as potential energy then converted to kinetic energy for muscular contraction
How can the food we eat be stored?
amine acids
triglycerides
glycogen
so it is ready for energy production
What happens when the fuels are metabolised?
they are converted to ATP
What is ATP known as?
the universal energy currency of the human body
When ATP is broken down, energy is provided for?
cellular respiration such as
digestion
nerve transmission
muscular contraction
Where is ATP stored?
in the muscle cells
What is the consideration of ATP?
one adenosine and 3 phosphates held together by bonds of chemical energy