Answered

Welcome to Westonci.ca, where curiosity meets expertise. Ask any question and receive fast, accurate answers from our knowledgeable community. Connect with professionals on our platform to receive accurate answers to your questions quickly and efficiently. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

Which of the following is responsible for the fusion of vesicles in the axon terminal to release the neurotransmitter into the synaptic cleft?

A. Ca2+ voltage-gated channels
B. Na+ voltage-gated channels
C. K+ voltage-gated channels
D. Depolarization

Sagot :

GinnyAnswer

Final answer:

Calcium ions are crucial for vesicle fusion and neurotransmitter release in the axon terminal at a chemical synapse.


Explanation:

Calcium ions are responsible for the fusion of vesicles in the axon terminal to release neurotransmitters into the synaptic cleft. When an action potential depolarizes the presynaptic membrane, it opens voltage-gated Ca²+ channels, allowing Ca²+ to enter the cell. This influx of calcium triggers a signaling cascade that leads to the fusion of synaptic vesicles with the presynaptic membrane, releasing neurotransmitters through exocytosis.


Learn more about Neurotransmitter release at the axon terminal here:

https://brainly.com/question/12530626


Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.