Cambridge AS & A Level Biology
15.1Control and coordination in mammals
Control and coordination in mammals in Cambridge AS & A Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic102 practice questions5 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 15.1.1Describe the endocrine system with reference to ADH, glucagon and insulin.
- 15.1.2Compare the nervous and endocrine systems.
- 15.1.3Describe sensory and motor neurones and state that intermediate neurones connect them.
- 15.1.4Outline how sensory receptor cells detect stimuli and start impulses.
- 15.1.5Describe how an action potential arises in a sensory neurone, using a taste-bud chemoreceptor.
- 15.1.6Describe and explain the resting potential, the action potential and the restoration of the resting potential.
- 15.1.7Describe and explain saltatory conduction in myelinated neurones.
- 15.1.8Explain how the refractory period limits the frequency of impulses.
- 15.1.9Describe the structure and function of a cholinergic synapse, including calcium ions.
- 15.1.10Describe the roles of neuromuscular junctions, T-tubules and sarcoplasmic reticulum in stimulating contraction.
- 15.1.11Describe the ultrastructure of striated muscle and the sarcomere.
- 15.1.12Explain the sliding filament model with troponin, tropomyosin, calcium ions and ATP.
Lessons
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Nervous and endocrine communication
30 min
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Receptors, resting potential and the action potential
35 min
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Striated muscle and the sliding filament model
35 min
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The cholinergic synapse
30 min
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Transmission of nerve impulses along axons
30 min
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Sample question
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