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Question 18M.3.SL.TZ1.6b

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.3.SL.TZ1.6b
Level SL Paper 3 Time zone TZ1
Command term Compare and contrast Question number b Adapted from N/A
b.
[Maximum mark: 2]
18M.3.SL.TZ1.6b

The diagram shows the components of a cochlear implant system.

(b)

Compare and contrast the mechanisms involved in hearing sounds in individuals with and without cochlear implants.

[2]

Markscheme

Compare:

a. sound transmitted by the auditory nerve in both cases
OR
both change sound waves to electrical impulses 

Contrast:

b. without CI cochlea stimulated by vibrations/middle ear bones whereas with CI electrical signals stimulate cochlea
OR
with a CI the auditory nerve is stimulated by electrodes whereas without CI the auditory nerve is stimulated by hair cells

One compare and one contrast must be given.

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