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Question 18M.3.HL.TZ2.7d

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Date May 2018 Marks available [Maximum mark: 3] Reference code 18M.3.HL.TZ2.7d
Level HL Paper 3 Time zone TZ2
Command term Outline Question number d Adapted from N/A
d.
[Maximum mark: 3]
18M.3.HL.TZ2.7d
(d)

Amphetamines act on synapses that use dopamine as a neurotransmitter by increasing the release of dopamine into the synaptic cleft. Outline the effect this would have on human synaptic transmission.

[3]

Markscheme

a. amphetamines are stimulants 

b. increases the release of dopamine in the presynaptic neuron 

c. blocks reuptake by presynaptic neuron 

d. more dopamine in the synaptic cleft 

e. increased binding on / transmission by the postsynaptic neuron

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