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.

Answered by Ioanna Z. Biology tutor

809 Views

See similar Biology IB tutors
Illustration of a video tutorial

Need help with Biology?

One to one online tuition can be a great way to brush up on your Biology knowledge.

Have a Free Meeting with one of our hand picked tutors from the UK’s top universities

Find a tutor

Related Biology IB answers

All answers ▸

Please explain patterns of sex linked genetic inhertitance and mention one or more examples of sex linked diseases


Explain which are the main costituents of carbohydrates and their structure


How does the oxygenated and deoxygenated blood travel throughout the heart?


Outline how neurons generate a resting potential


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2022

Terms & Conditions|Privacy Policy