Neurotransmission Process at a Synapse Quiz

What is the first step in the process of neurotransmission at a synapse?

• Neurotransmitters attach to receptors on the postsynaptic membrane.

• An impulse arrives at the end of the presynaptic neurone.

• Vesicles move towards and fuse with the presynaptic membrane.

• Neurotransmitters are recycled or destroyed.

What happens after vesicles fuse with the presynaptic membrane?

• Neurotransmitters diffuse across the synaptic cleft.

• An impulse arrives at the end of the presynaptic neurone.

• Neurotransmitters attach to receptors on the postsynaptic membrane.

• The neurotransmitters are recycled or destroyed.

Which event triggers an impulse to travel along the postsynaptic neurone?

• Neurotransmitters are recycled or destroyed.

• Vesicles move towards the presynaptic membrane.

• Neurotransmitters attach to receptors on the postsynaptic membrane.

• An impulse arrives at the end of the presynaptic neurone.

What occurs after neurotransmitters attach to receptors on the postsynaptic membrane?

• An impulse travels along the postsynaptic neurone.

• Vesicles move towards the presynaptic membrane.

• Neurotransmitters diffuse across the synaptic cleft.

• An impulse arrives at the end of the presynaptic neurone.

What is the final step in the neurotransmission process at a synapse?

• Neurotransmitters attach to receptors on the postsynaptic membrane.

• Vesicles move towards the presynaptic membrane.

• The neurotransmitters are recycled or destroyed.

• An impulse arrives at the end of the presynaptic neurone.

Which structure releases neurotransmitters into the synaptic cleft?

• Myelin sheath.

• Postsynaptic membrane.

• Presynaptic vesicles.

• Axon hillock.

What ensures that neurotransmitters only affect the postsynaptic neurone?

• Neurotransmitters are destroyed immediately after release.

• Receptors are only present on the postsynaptic membrane.

• Vesicles only move towards the presynaptic membrane.

• An impulse only travels in one direction.

What would happen if neurotransmitters were not removed from the synaptic cleft?

• An impulse would not arrive at the presynaptic neurone.

• The postsynaptic neurone could be continuously stimulated.

• Vesicles would not fuse with the presynaptic membrane.

• The postsynaptic neurone would not be stimulated.

Which process prevents continuous stimulation of the postsynaptic neurone?

• Continuous release of neurotransmitters from vesicles.

• Destruction or reuptake of neurotransmitters in the synaptic cleft.

• Movement of vesicles away from the presynaptic membrane.

• Presence of receptors on both membranes.

What would most likely happen if receptors on the postsynaptic membrane were blocked?

• Neurotransmitters would not be released from vesicles.

• The postsynaptic neurone would not be stimulated.

• Vesicles would not fuse with the presynaptic membrane.

• Neurotransmitters would not diffuse across the synaptic cleft.