Which of the following statements best describes the role of calcium in the rele

Question

                                     Which of the following statements best describes the role of calcium in the release of a                                                       neurotransmitter substance from the presynaptic nerve terminal?
                    A.Calcium entry into the presynaptic terminal prevents the release of the neurotransmitter                                                       B.Calcium entry into the presynaptic terminal is necessary for the release of the neurotransmitter                                                       C.Calcium induces the opening of calcium-dependent sodium channels on the presynaptic                                                       terminal                                                       D.Calcium entry into the presynaptic terminal results in the formation of cAMP which                                                       induces a conformational change in the presynaptic sodium channel that leads to the                                                       release of neurotransmitter                                                                    Which of the following statements best describes the role of calcium in the release of a                                                       neurotransmitter substance from the presynaptic nerve terminal?
                    A.Calcium entry into the presynaptic terminal prevents the release of the neurotransmitter                                                       B.Calcium entry into the presynaptic terminal is necessary for the release of the neurotransmitter                                                       C.Calcium induces the opening of calcium-dependent sodium channels on the presynaptic                                                       terminal                                                       D.Calcium entry into the presynaptic terminal results in the formation of cAMP which                                                       induces a conformational change in the presynaptic sodium channel that leads to the                                                       release of neurotransmitter                                                   Which of the following statements best describes the role of calcium in the release of a                                      neurotransmitter substance from the presynaptic nerve terminal?
                    A.Calcium entry into the presynaptic terminal prevents the release of the neurotransmitter                                      B.Calcium entry into the presynaptic terminal is necessary for the release of the neurotransmitter                                      C.Calcium induces the opening of calcium-dependent sodium channels on the presynaptic                                      terminal                                      D.Calcium entry into the presynaptic terminal results in the formation of cAMP which                                      induces a conformational change in the presynaptic sodium channel that leads to the                                      release of neurotransmitter                 

Explanation / Answer

B.Calcium entry into the presynaptic terminal is necessary for the release of the neurotransmitter

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