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Slide 2

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Structure…read more

Slide 3

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Sarcomere
I-band A-band I-band
M-line
Z-line Myosin Z-line
Actin
H-Zone
Structure…read more

Slide 4

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Contraction…read more

Slide 5

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Myosin filaments have globular heads and
binding sites.
Troponin Actin
Tropomyosin Myosin globular
head
Myosin
The binding sites in resting muscles are
blocked by tropomyosin.
Sliding filament hypothesis…read more

Slide 6

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Muscle contraction is triggered by an
action potential.
Ca2+
AT
Pa
se
Sliding filament hypothesis…read more

Slide 7

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Preview of page 7

Comments

Laura

I'm sorry but this resource is really not detailed enough to pass A2 questions...

ella

This is nice and easy to understand - i like the diagrams - thank you !

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