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Question 18M.3.HL.TZ2.4a

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.3.HL.TZ2.4a
Level HL Paper 3 Time zone TZ2
Command term Outline Question number a Adapted from N/A
a.
[Maximum mark: 2]
18M.3.HL.TZ2.4a

Modification of neurons starts in the earliest stages of embryo development and continues to the final years of life. The image shows changes occurring in mice brain neurons at an early stage in life.

(a)

Outline how an immature neuron develops an axon.

[2]

Markscheme

a. neurons initially produce multiple dendrites/prolongations 

b. an axon develops in response to chemical stimuli

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