Neuron Structure Video Lessons

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Problem: Which of the following statements about a chemical synapse is true?a) Calcium ions relay the signal generated by an action potential in one neuron across the gap to a second neuron.b) It allows signal transmission from one neuron to another through a wave of electrochemical change.c) Signal transmission occurs by diffusion of a compound called a neurotransmitter through the intercellular space between neurons.d) Its presynaptic component undergoes chemical breakdown in response to a signal, and the breakdown product carries the signal to the postsynaptic component.

FREE Expert Solution

a) Calcium ions relay the signal generated by an action potential in one neuron across the gap to a second neuron.

FALSE. Ca2+ ions are involved in generating action potentials but do not transfer signals between neurons.

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Problem Details

Which of the following statements about a chemical synapse is true?

a) Calcium ions relay the signal generated by an action potential in one neuron across the gap to a second neuron.

b) It allows signal transmission from one neuron to another through a wave of electrochemical change.

c) Signal transmission occurs by diffusion of a compound called a neurotransmitter through the intercellular space between neurons.

d) Its presynaptic component undergoes chemical breakdown in response to a signal, and the breakdown product carries the signal to the postsynaptic component.

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