Which of the Following Must Happen First in the Order

question 52

Multiple Choice

Which of the following must happen first in the order events at a chemical synapse?

• A) Neurotransmitter binds to receptors on the postsynaptic neuron.
• B) Ion channels respond to the neurotransmitter and lead to a local potential, or possibly an action potential.
• C) Calcium ion channels in the axon terminal open.
• D) Calcium ions cause synaptic vesicles to release neurotransmitters into the synaptic cleft.

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Definitions:

Competition

A situation in which individuals or groups strive against one another to achieve a goal that cannot be shared.

Pleasure

A feeling of happiness, enjoyment, or satisfaction derived from an experience.

Self-determination Theory

A theory of motivation that posits people are most satisfied and perform best when they feel that their actions stem from their own desires rather than from external pressures.

Self-efficacy

An individual's belief in their own capability to complete tasks and reach goals, influencing motivation and performance.