This lesson describes the roles of the neuromuscular junction, including the sarcoplasmic reticulum and T-tubule system. The PowerPoint and accompanying resources have been planned to primarily cover the content of point (10) of topic 15.1 of the CIE A-level Biology specification, but also introduces striated muscle and the sliding filament model which are covered in the next two lessons.
Due to a number of similarities between these structures and cholinergic synapses, this lesson uses prior knowledge of these connections between neurones to build a good understanding of the junctions. Students will discover that the events that occur at an axon tip mirror those which happen at the pre-synaptic bulb and this is then developed to look at the differences in terms of the events once the acetylcholine has bound to its receptor sites. There is a focus on the structure of the sarcolemma and time is taken to explain how the action potential is passed from this membrane to the transverse tubules in order to stimulate the release of calcium ions from the sarcoplasmic reticulum. As a result, this lesson ties in nicely with an upcoming lesson on the contraction of skeletal muscle and students will be able to link the binding to troponin in that lesson to the release of these ions from this lesson.
Both of the main tasks of the lesson have been differentiated so that students of all abilities can access the work and make progress.
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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.
£18.50
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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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