explain the contraction of the skeletal muscle, according to the muscle sliding filament theory.

ATP binds to the myosin head   Hydrolysis of ATP causes the head to come to a “cocked” position. Then the head binds to the actin binding site creating a cross-bridge ADP and Pi are released from the myosin, causing the myosin head to pivot and push the actin filament towards the center of the sarcomereThe head attaches to a new ATP to start a new cycle. This further pushes the actin filaments to the center of the sarcomere. Contraction may continue as long as there are calcium ions free.

IZ
Answered by Ioanna Z. Biology tutor

1659 Views

See similar Biology IB tutors

Related Biology IB answers

All answers ▸

Describe how the origin of living systems is explained by natural processes. Please provide supporting evidence for hypotheses.. Sp


Describe the genetic code and its relationship to polypeptides and proteins. (5 points) (PAPER 2 QUESTION BIOLOGY SL)


Explain the process of muscle contraction


What cells and in what order take part in the imune response?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning