DP Biology (last assessment 2024)
Question 18M.3.SL.TZ2.5b
| Date | May 2018 | Marks available | [Maximum mark: 3] | Reference code | 18M.3.SL.TZ2.5b |
| Level | SL | Paper | 3 | Time zone | TZ2 |
| Command term | Explain | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 3]
18M.3.SL.TZ2.5b
(b)
Explain the use of the pupil reflex as a test for brain damage.
[3]
Markscheme
a. «bright» light is shone in to the eye
b. the pupil reflex is when the pupils constrict
c. if not observed could indicate damage to the optic nerve/ocular motor nerve/medulla oblongata
OR
brain stem death
OR
depressant drug use
Examiners report
