Muscle Contraction

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Actin
Protein filament that forms part of the acto-myosin bridge
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Myosin
Protein filament that forms part of the acto-myosin bridge, has a head that binds to actin and has different positions
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Tropomyosin
A protein that covers the binding site on actin
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Troponin
A protein that pulls the tropomyosin away from the binding site
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ATP
Provides energy that releases the myosin head from the actin
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ATPase
Enzyme that breaks down ATP and releases energy
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Calcium Ions
Initiates contraction and bind to troponin, exposing the binding sites
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Other cards in this set

Card 2

Front

Protein filament that forms part of the acto-myosin bridge, has a head that binds to actin and has different positions

Back

Myosin

Card 3

Front

A protein that covers the binding site on actin

Back

Preview of the back of card 3

Card 4

Front

A protein that pulls the tropomyosin away from the binding site

Back

Preview of the back of card 4

Card 5

Front

Provides energy that releases the myosin head from the actin

Back

Preview of the back of card 5
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