Final answer:
All the listed items are accepted aspects of chemical synapses, so none is considered NOT a proof regarding them. The correct answer would be E. All of the above are proofs regarding chemical synapses.
Step-by-step explanation:
The question 'Which of the following is NOT a proof regarding chemical synapses?' is seeking to identify any listed item that is not supported by empirical evidence or well-established theory concerning the workings of chemical synapses. Looking at the options given:
- A. Release of transmitters from synaptic vesicles is a well-documented event in neurotransmission.
- B. Dependence in neurotransmitter release with calcium is a fundamental aspect of synaptic function whereby calcium influx triggers vesicle fusion.
- C. Quantal release of neurotransmitter refers to the observation that neurotransmitters are released in packets, not continuously.
- D. Local recycling of synaptic vesicles is a process that does occur, but the term 'proof' can be misleading here as this implies an empirical observation or a widely accepted mechanism, and there is ongoing research into the specifics of vesicle recycling.
- E. All of the above are indeed aspects related to chemical synapses, so none of the options should be considered NOT a proof regarding chemical synapses.
Therefore, the answer to the question would be E. All of the above are proofs regarding chemical synapses.