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MMLU-Pro / 3418 / It is observed that the chemical transmission occurring at a synapse is…

Problem

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question

It is observed that the chemical transmission occurring at a synapse is unidirectional that is, the neurotransmitter always travels from thepresynapticaxon to the post-synaptic dendrite . Explain why.

category

biology

options

  1. The synaptic cleft allows for bidirectional flow of neurotransmitters.
  2. Dendrites release neurotransmitters that are taken up by the axons.
  3. Neurotransmitter receptors are only located on the presynaptic axon.
  4. There are synaptic vesicles inside the dendrites of a neuron.
  5. The neurotransmitter is present in the axonal end of a neuron only and there are no synaptic vesicles inside the dendrites of a neuron.
  6. Synaptic vesicles are equally distributed in both the axonal and dendritic ends.
  7. The axonal terminal has no mechanism to release neurotransmitters.
  8. Chemical transmission is always from the dendritic end to the axonal terminal.
  9. Neurotransmitters can diffuse back into the axon after release.
  10. The neurotransmitter is present in both the axonal and dendritic ends of a neuron.

src

stemez-Biology

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