This lesson explains the sliding filament model of muscular contraction, including the roles of troponin, tropomyosin, calcium ions and ATP. The PowerPoint and accompanying resources have been planned to cover the concent of point (12) of topic 15.1 of the CIE A-level Biology specification (for assessment in 2025 - 27). The wide range of activities included in the lesson will engage and motivate the students whilst the understanding and prior knowledge checks will not only allow them to assess their progress but also challenge them to make links to other biology topics.
The start of the lesson is designed to encourage the students to consider how a sarcomere can narrow but the lengths of the myofilaments can remain the same. In doing so, they will be introduced to the idea of the sliding filament model and the main task of the lesson involves the formation of a bullet point description of this model where one event is the trigger for the next. Time is taken during this section to focus on the involvement of the calcium ions but also ATP and the idea of the sources of this molecule, including creatine phosphate, are discussed in more detail later in the lesson. The final part of the lesson involves students having to apply their knowledge by describing the effect on muscle contraction when a part of a structure is unable to function correctly.
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Topic 15: Control and coordination (CIE A-level biology)
These 9 lessons cover points 15.1 (1, 3, 6, 7, 9, 10, 11 & 12) and 15.2 (2) from topic 15 of CIE A-level biology specification (for assessment in 2025 - 27). This topic is titled control and coordination and concerns comparisons between the endocrine and nervous system in mammals, and then the key structure of the nervous system before looking at this control in plants. Each lesson has been extensively planned and contains a wide range of engaging activities and tasks, interspersed with current and prior knowledge checks. The sensory, motor & intermediate neurones and cholinergic synapses lessons have been shared for free, if you want to download first to get an idea for the quality of these lessons.
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Topic 15.1: Control and coordination in mammals (CIE International A-level Biology)
This bundle contains 8 fully-resourced and detailed lessons that have been designed to cover the content of topic 15.1 of the CIE A-level Biology specification (for assessment in 2025-27) which concerns the control and coordination in mammals. The wide range of activities included in each lesson will engage the students whilst the detailed content is covered and the understanding and prior knowledge checks allow them to assess their progress on the current topic as well as challenging them to make links to other related topics. Many of the tasks are differentiated to allow differing abilities to access the work and be challenged. Topic 15.1 specification points 1, 3, 6, 7, 9, 10, 11, and 12 are covered by these lessons If you want to see the quality of the lessons before purchasing then download the lessons on sensory, morot and intermediate neurones and the structure and role of the cholinergic synapse as these have been shared for free.
£17.00
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