| Date | November 2017 | Marks available | 1 | Reference code | 17N.3.SL.TZ0.05 |
| Level | Standard level | Paper | Paper 3 | Time zone | TZ0 |
| Command term | Identify | Question number | 05 | Adapted from | N/A |
Question
The diagram shows the human brain.
[Source: By charlyzon (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons.]
Identify the structure labelled A.
[1]
a.i.
List two functions of the structure labelled A.
[2]
a.ii.
Outline the reason that Broca’s area is more developed in humans than other primates.
[1]
b.
Suggest how an injury to the brain can help in understanding brain function.
[1]
c.
Markscheme
medulla «oblongata»
OR
brain stem
a.i.
a. breathing «rate»
b. heart function
c. digestion/saliva production
d. swallowing reflex
e. coughing
f. vomiting
g. blood pressure
h. state of consciousness/sleep
Allow any two functions.
No ECF
[Max 2 Marks]
a.ii.
«controls motor functions involved with speech and» speech is more developed in humans
b.
observe any changes in the person
c.
Examiners report
[N/A]
a.i.
[N/A]
a.ii.
[N/A]
b.
[N/A]
c.
Syllabus sections
Option A: Neurobiology and behaviour » Option A: Neurobiology and behaviour (Core topics) » A.2 The human brain
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