DP Biology (last assessment 2024)
Question 18N.3.SL.TZ0.6
| Date | November 2018 | Marks available | [Maximum mark: 4] | Reference code | 18N.3.SL.TZ0.6 |
| Level | SL | Paper | 3 | Time zone | TZ0 |
| Command term | Explain, Identify, Label | Question number | 6 | Adapted from | N/A |
6.
[Maximum mark: 4]
18N.3.SL.TZ0.6
The diagram shows a magnetic resonance image (MRI) of a human brain.
(a.i)
On the diagram, label the visual cortex.
[1]
Markscheme
Accept any label within the area shown on the image
(a.ii)
Identify the structure labelled X.
[1]
Markscheme
pituitary gland ✔
(b)
Explain how a functional MRI (fMRI) can be used to identify the function of parts of the brain.
[2]
Markscheme
a. magnetic field is used to make pictures of brain/organs/structures ✔
b. an fMRI shows changes in blood flow ✔
c. increased blood flow associated with activity in specific areas of the brain ✔
d. performance of task matched with active area of brain ✔
