This lesson introduces the differences between ectotherms and endotherms and then describes the behavioural responses of an ecotherm. The PowerPoint and accompanying resource have been designed to cover specification point 9.9 (vi) of the Edexcel A-level Biology B specification which states that students should understand how ectotherms rely on the external environment for their temperature control. The main aim when designing the lesson was to support students in making sensible and accurate decisions when challenged to explain why these types of organisms have chosen to carry out a particular response. A wide range of animals are used so students are engaged in the content matter and are prepared for the unfamiliar situations that they will encounter in the terminal exam. Time is also taken to compare ectotherms against endotherms so that students can recognise the advantages and disadvantages of ectothermy when covered in the following lesson.
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Topic 9: Control systems (Edexcel A-level Biology B)
This bundle contains 15 lessons which are engaging and highly detailed in order to cover the difficult content as set out in topic 9 (Control systems) of the Edexcel A-level Biology B specification. The lesson PowerPoints and accompanying resources contain a wide variety of tasks which cover the following specification points: * Homeostasis is the maintenance of a state of dynamic equilibrium * The importance of maintaining pH, temperature and water potential in the body * The meaning of negative feedback and positive feedback control * The principles of hormone production by endocrine glands * The two main modes of action in hormones * The division of the autonomic nervous system into the sympathetic and parasympathetic systems * The transport of sodium and potassium ions in a resting potential * The formation of an action potential and the propagation along an axon * Saltatory conduction * The function of synapses * The formation and effects of excitatory and inhibitory postsynaptic potentials * The structure of the human retina * The role of rhodopsin * The distribution of rods and cone cells * The control of heart rate by the autonomic nervous system * The gross and microscopic structure of the kidney * The production of urea in the liver and its removal from the blood by ultrafiltration * Selective reabsorption in the proximal tubule * Control of mammalian plasma concentration * The differences between ectotherms and endotherms * The regulation of temperature by endotherms If you would like to sample the quality of this lesson bundle, then download the homeostasis, resting and action potentials and the formation of urea and ultrafiltration lessons as these have been uploaded for free.
£22.00
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Topic 9.9: Osmoregulation and temperature regulation (Edexcel A-level Biology B)
This detailed bundle contains 6 lesson PowerPoints and accompanying resources that cover the following specification points found within topic 9.9 of the Edexcel A-level Biology B specification: * The gross and microscopic structure of the mammalian kidney * The formation of urea in the liver from excess amino acids * The removal of urea from the bloodstream by ultrafiltration * The selective reabsorption of solutes in the proximal tubule * The differences between endotherms and ectotherms * The regulation of temperature by endotherms by a range of behavioural and physiological responses The wide range of tasks, which include exam-style questions with detailed markschemes, focused discussion points and quiz competitions which introduce key terms and values, will engage and motivate the students whilst the content is covered in the detail required at A-level If you would like to sample the quality of the lessons included in this bundle, then download the formation of urea and ultrafiltration lesson as this has been shared for free
£10.00
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