Pearson Edexcel International AS Level · Psychology (XPS01)

CNS, neurons, neurotransmitters and synaptic transmission: Practice Questions

5 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on CNS, neurons, neurotransmitters and synaptic transmission.

10 questions24 marksFree, no account

Question 1

1 mark

Which of the following describes the difference between circadian and infradian rhythms as defined in biological psychology?

Question 2

1 mark

Which of the following statements provides the most accurate biological explanation for aggression based on the interaction between the limbic system and the pre-frontal cortex?

Question 3

1 mark

When evaluating the use of fMRI (functional Magnetic Resonance Imaging) compared to PET (Positron Emission Tomography) in aggression research, which of the following represents a significant advantage of fMRI?

Question 4

1 mark

Which of the following describes the function of the pre-frontal cortex in relation to aggression, according to brain structure explanations?

Question 5

1 mark

In biological psychology, the regulation of the circadian sleep-wake cycle involves both internal and external factors. Which of the following best describes the role of light in this process?

Question 6

2 marks

In the study of neurons within Topic C: Biological psychology, identify the specific structure that acts as a gap between two neurons where neurotransmitters are released to facilitate communication.

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Question 7

3 marks

Explain how the pre-frontal cortex is thought to function as an explanation for aggressive behaviour.

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Question 8

5 marks

In the context of the central nervous system, explain the biological process by which an inhibitory neurotransmitter decreases the likelihood of a post-synaptic neuron firing an action potential.

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Question 9

4 marks

Define the term endogenous pacemaker within the context of biological psychology. Provide one example of an endogenous pacemaker and briefly describe its role in regulating the circadian sleep-wake cycle.

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Question 10

5 marks

In the study of synaptic transmission, the process of communication between neurons involves several steps.

a) Describe the role of neurotransmitters and receptors at the synapse.
b) Explain how the process of reuptake affects the concentration of neurotransmitters in the synaptic gap and what this means for subsequent signal transmission.

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