What Ion Is Necessary for the Release of Neurotransmitter from Synaptic

question 152

Multiple Choice

What ion is necessary for the release of neurotransmitter from synaptic vesicles?

• A)chloride
• B)sodium
• C)potassium
• D)calcium

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Definitions:

Action Potential

A rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane, due to the movement of ions in and out of the neuron.

Voltage-Gated

Refers to a type of ion channel that opens or closes in response to changes in the electrical potential across a cell membrane.

Incoming Signals

External stimuli or information received by an organism or cell that can trigger a response or cellular process.

Dendrites

Branched extensions of a neuron that receive signals from other neurons and convey them toward the cell body.