2021

Question 1

Describe the structure and function of a neuron.

Answer 1

Possible content:
* Neurons enable communication within the nervous system
* the cell body (soma) contains the genetic material
* branch-like dendrites extend from the cell body (often with dendritic spines)
* dendrites carry functional information towards the cell body
* dendrites can receive information from other neurons
* axons carry messages away from the cell body
* axons can be myelinated to increase speed of nerve transmission (saltatory conduction between
nodes of Ranvier)
* terminal boutons are at the end of axons, these make synaptic connections with other cells
* axon terminals contain neurotransmitters.
Credit other relevant material.
Note: credit references to structure and function of specific neurons (sensory, motor and relay).
Note: information presented in a diagram can be credited.

Question 2

Studies have identified Broca’s area and Wernicke’s area as responsible for language.
Outline the difference in function between Broca’s area and Wernicke’s area.

Answer 2

Marks for this question: AO1 = 2
2 marks for a clear and coherent answer.
1 mark for a limited/muddled answer.
Possible content:
* Broca’s area is responsible for speech production whereas Wernicke’s area is responsible for
language comprehension
* Broca’s area enables speech to be fluent whereas Wernicke’s area enables speech to be meaningful.
Credit other relevant material.
Note: do not credit structural differences.