DP Biology (last assessment 2024)
Question 18M.3.SL.TZ1.6c
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.3.SL.TZ1.6c |
| Level | SL | Paper | 3 | Time zone | TZ1 |
| Command term | Outline | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 2]
18M.3.SL.TZ1.6c
(c)
Outline the role of the ear in balance perception.
[2]
Markscheme
a. head movements cause fluid in the canals to move
b. this deflects hair cells
c. (semicircular canals) are perpendicular/right angles detecting movements in any direction/plane
d. send nerve impulses to the brain (by acoustic nerve)
