Ion Pumping Mechanisms in Cells
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Questions and Answers

What is responsible for converting electrical information into chemical information at the pre-synaptic neuronal terminal?

  • Effector binding
  • Ionic flux
  • Neurotransmitter release
  • Calcium influx (correct)

Which component binds to the released neurotransmitter on the pre-synaptic membrane?

  • Second messenger pathway
  • Autoreceptor
  • Receptor protein (correct)
  • Enzyme

What does the activation of the receptor on the pre-synaptic membrane lead to?

  • Inhibition of neurotransmitter release
  • Decreased ionic flux
  • Activation of second messenger pathways (correct)
  • Depolarisation of the pre-synaptic membrane

How is chemical information encoded by neurotransmitters converted back into electrical information?

<p>Action potentials in the post-synaptic membrane (B)</p> Signup and view all the answers

What role do neurotransmitters play in a functional brain network?

<p>Gating synaptic plasticity (C)</p> Signup and view all the answers

How is neurotransmission controlled at the presynaptic terminal?

<p>By autoreceptors (D)</p> Signup and view all the answers

What happens when neurotransmission goes wrong?

<p>Impaired information transfer between neurons (D)</p> Signup and view all the answers

What initiates the process of neurotransmitter release at the pre-synaptic neuronal terminal?

<p>Electrical stimulation (D)</p> Signup and view all the answers

What is a consequence of neurotransmitters modulating the flow and rate of information transfer within a network?

<p>Enhancing synaptic plasticity (D)</p> Signup and view all the answers

In what form is information propagated from one nerve cell to another?

<p>Electrical signals through ion channels (C)</p> Signup and view all the answers

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