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6. What is the correct definition of "Threshold Potential"?

  • The minimum amount of ions in a transmission.
  • The membrane potential to which a membrane must be depolarized to initiate an action potential.
  • The maximum amount of impulses that can be sent at one time.
  • The membrane potential to which a membrane must be repolarized to stop an action potential.

7. What is the name of the neurotransmitter substance that diffuses across the synaptic cleft in cholinergic synapses?

  • Dopamine
  • Glutamic acid
  • Acetylcholine
  • Acetylcholinesterase

8. Choline is transported back to the pre-synaptic membrane membrane and combined with Pyruvate (TRUE or FALSE)

  • False
  • True
  • I have no idea

9. The amount of mitochondria in the synaptic knob?

  • One or Two
  • None
  • Large amount
  • Normal

10. Which voltage-gated ion channels open when an action potential arrives at the synaptic knob?

  • Oxyacetylene ion channels
  • Potassium ion channels
  • Calcium ion channels
  • Sodium ion channels