Energy - Key Words

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Chemical energy
Energy stored within the bonds if chemical compounds (within molecules)
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Adenosine triphosphate (ATP)
Chemical energy stored as a high energy compound in the body. It is the only immediately usable source of energy in the human body
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Potential energy
'Stored' energy which is ready to be used when required
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Kinetic energy
Energy in the form of muscle contraction/joint movement
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Energy
Energy is the ability to perform work or put mass into motion. Measured in joules (J)
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Work
Work is done when a force is applied to a body to move it over a certain distance. Units are measured in joules (J)
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Power
Power is the rate at which work can be done, i.e. work divided by time. Units for power are watts (W)
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Force
A pull or push that alters, or tends to alter, the state of motion of a body. It is measured in Newtons (N)
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Compound
A mixture of elements
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Enzyme
Protein molecules that act as catalysts for the body's chemical reactions.
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Exothermic
A chemical reaction that releases energy as it progresses
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Endothermic
A chemical reaction that requires energy to be added for it to progress
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Coupled reactions
When the products from one reaction, such as energy, are then used in another reaction
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Anaerobic
A reaction that can occur without the presence of oxygen
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Sacroplasm
Fluid-like gelatine that fills the spaces with the muscle cells and is a store of glycogen, fat, proteins, enzymes and myoglobin
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Threshold
The point when one energy system stops being the predominant energy provider for the resynthesis of ATP
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Anaerobic glycolysis
The partial breakdown of glucose into pyruvic acid
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Card 2

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Adenosine triphosphate (ATP)

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Chemical energy stored as a high energy compound in the body. It is the only immediately usable source of energy in the human body

Card 3

Front

Potential energy

Back

Preview of the front of card 3

Card 4

Front

Kinetic energy

Back

Preview of the front of card 4

Card 5

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Energy

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