Contraction of SKELETAL MUSCLES (AQA A-level Biology)

This is a fully-resourced lesson that covers the content of specification point 6.3 of the AQA A-level Biology specification which states that students should understand how skeletal muscles are stimulated to contract by nerves and act as effectors. The wide range of activities included in the lesson will engage and motivate the students whilst the understanding and previous knowledge checks will not only allow them to assess their progress but also challenge them to make links to other Biology topics.

The following content is covered in detail in this lesson:

  • The ultrastructure of a myofibril
  • The roles of actin and myosin in myofibril contraction
  • The need for calcium ions and ATP in myofibril contraction
  • The roles of calcium ions and tropomyosin in cross-bridge formation
  • The roles of ATP and phosphocreatine in muscle contraction

This lesson has been designed for students studying the AQA A-level Biology course and ties in nicely with the other uploaded lessons from topic 6 such as synapses and NMJs and nerve impulses


Save for later
  • Skeletal-muscle-contraction.pptx
  • The-arrangement-of-the-myofibril.docx
  • Applying-your-understanding-of-the-sliding-filament-model.docx
  • Applying-your-understanding-of-the-sliding-filament-model-STARS.docx

About this resource


Created: Sep 16, 2019

Updated: Sep 22, 2019

Whole lesson

pptx, 3 MB



docx, 62 KB



docx, 14 KB


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Creative Commons "Sharealike"

Creative Commons "Sharealike"