What is the sequence of events for muscle contraction?

·      The myosin head attaches to the myosin binding site on the actin filament forming an actinomyosin bridge·      ATP is hydrolysed to ADP and inorganic phosphate as the cross-bridge forms (ATP hydrolase is activated by calcium ions so that ATP is hydrolysed)·      The myosin head tilts in a rowing action, sliding the actin filament over the myosin filament, toward the centre of the sarcomere·      Energy from the hydrolysis of ATP causes the myosin head to release the actin filament·      The myosin head flips back into its original position and the cycle is repeated as another actinomyosin bridge is formed.

Answered by Letisha B. Biology tutor

31454 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What is the series of events that occur when an action potential enters the presynaptic neuron


Humans and grasshoppers have very similar percentages of each base in their DNA but they are very different organisms. Use your knowledge of DNA structure and function to explain how this is possible (2 Marks)


Why do insulin levels rise in the body following a meal, and what effects does the insulin have?


State the difference between Apoplastic and symplastic pathways of water movement in plants


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 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences