User interface language: English | Español

Date November 2016 Marks available 1 Reference code 16N.3.HL.TZ0.7
Level Higher level Paper Paper 3 Time zone TZ0 / no time zone
Command term State Question number 7 Adapted from N/A

Question

State the function of the bones in the middle ear.

[1]
b.

Explain the role of the hair cells in the cochlea.

[3]
c.

Markscheme

amplify/transmit the sound/vibrations

b.

a. hair cells located within the organ of Corti
OR
hair cells are mechanoreceptors

b. hairs/cilia of hair cells move/vibrate with the movement of the liquid/fluid in the cochlea

c. amount of movement is proportional to the amplitude/loudness of the sound

d. frequency/wavelength/pitch distinguished by different hair cells/according to position of hair cells/length of hairs/cilia

e. hair cells transmit impulses to auditory nerve/brain

c.

Examiners report

[N/A]
b.
[N/A]
c.

Syllabus sections

Option A: Neurobiology and behaviour » Option A: Neurobiology and behaviour (Core topics) » A.3 Perception of stimuli
Show 63 related questions
Option A: Neurobiology and behaviour » Option A: Neurobiology and behaviour (Core topics)
Option A: Neurobiology and behaviour

View options