Edexcel A-Level Biology A2 8.7 Drugs and Nerve Impulse Transmission Questions

Practise applying drug effects to nerve transmission, using ion channels, receptors, neurotransmitters and treatment data.

Exam points

explain how lidocaine or toxins block ion channels and reduce action potentials
link nicotine or MDMA to increased transmission through receptors or neurotransmitter release
apply L-DOPA and carbidopa evidence to dopamine replacement in Parkinson's disease

[Maximum number: 1]

The photograph shows the eyes of a meerkat.

Photoreceptors stimulate nerve transmission in the eye.

Which of these drugs would increase nerve transmission?

ecstasy (MDMA) and lidocaine

ecstasy (MDMA) and nicotine

lidocaine and nicotine

lidocaine only

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