Multiple choice

Neuropeptides are small protein molecules used by neurons to communicate with each other. They are present in synaptic terminals because

  1. they are synthesized in the terminal

  2. they are carried by fast axonal transport

  3. they are carried by diffusion

  4. they are carried by slow axonal transport

  5. they are taken-up from the extracellular space

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Neuropeptides are neuronal signaling molecules. They are synthesized in the cell body and are processed in vesicles that are transported to axon terminals along microtubules via fast axonal transport.

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