What is the primary mechanism of neuronal excitation in GCSE?
Understand the Problem
The question is asking about the primary mechanism through which neuronal excitation occurs, specifically in the context of GCSE. It presents multiple-choice options that describe different biological processes related to neuronal function.
Answer
Excitatory neurotransmitters stimulate action potentials in postsynaptic neurons.
The primary mechanism of neuronal excitation involves excitatory neurotransmitters which stimulate an action potential in the postsynaptic neuron.
Answer for screen readers
The primary mechanism of neuronal excitation involves excitatory neurotransmitters which stimulate an action potential in the postsynaptic neuron.
More Information
Neuronal excitation is crucial for transmitting signals throughout the nervous system, allowing neurons to respond to stimuli and communicate with each other.
Tips
A common mistake is confusing excitatory and inhibitory neurotransmitters. Remember that excitatory neurotransmitters increase the likelihood of an action potential, whereas inhibitory neurotransmitters decrease it.
Sources
- Synaptic Transmission - GCSE Psychology Revision Notes - savemyexams.com
- Excitatory and inhibitory signals - Higher Human Biology Revision - bbc.co.uk
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