Sliding Filament hypothesis
Updated: 5/18/2020
Sliding Filament hypothesis
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Storyboard Text

  • Hello! i was wondering how myosin pulls on actin to create muscle contractions. Can you tell me?
  • Well the brain sends a signal to the muscles and ATP attaches to the myosin
  • Then doesn't the ATP become ADP and phosphate as the myosin raises and attaches to the actin?
  • That's right, but that is after the myosin pulls on the actin at the cross bridge
  • After the myosin pulls on the actin the ATP divides into the phosphate and the ADP like you said. The myosin relaxes when the ADP and phosphate are released, allowing for more ATP to enter and for the cycle to repeat
  • Oh, so then what happens?
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