Pearson Edexcel IAL Biology 8.5 Saltatory conduction
Practise explaining saltatory conduction through myelin, nodes of Ranvier, axon diameter and data comparing impulse speeds.
- Syllabus
- First assessment 2019
- Course
- Biology YBI11
- Level
- A2
Exam points
- explain why myelin insulation makes impulses jump between nodes of Ranvier
- compare myelinated and non-myelinated neurones using speed tables or graphs
8.5—Saltatory conduction question 1
Many predatory animals produce toxins to disable their prey. Some of these toxins inhibit nervous communication.
Nerve impulses are transmitted along axons. Some axons are myelinated.
Which row correctly compares the conduction of an impulse along a myelinated neurone with conduction along a non-myelinated neurone?
□ A
□ B
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