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The diagram shows a motor neurone - OCR Gateway - GCSE Biology (Combined Science) - Question 4 - 2018 - Paper 1
Question 4
The diagram shows a motor neurone. What is the function of part X? A Generates an impulse B Insulates the axon C Slows down the speed of an impulse D Stops an i... show full transcript
Worked Solution & Example Answer:The diagram shows a motor neurone - OCR Gateway - GCSE Biology (Combined Science) - Question 4 - 2018 - Paper 1
Step 1
What is the function of part X?
Answer
Part X in the motor neurone diagram is responsible for insulation around the axon. The primary role of the insulating layer is to increase the speed of impulse transmission along the neurone by preventing the loss of electrical signal, allowing for more efficient communication between nerve cells.
Thus, the correct answer is: B - Insulates the axon.