Podcast
Questions and Answers
Which mechanism is responsible for the rapid response of neurotransmitters that open ion channels?
Which mechanism is responsible for the rapid response of neurotransmitters that open ion channels?
- Enzymatic breakdown of neurotransmitters in the synaptic cleft
- Active transport of neurotransmitters
- Indirect mechanism through second messengers
- Direct mechanism that promotes fast synapses (correct)
What is the primary function of enzymes present in the synaptic cleft?
What is the primary function of enzymes present in the synaptic cleft?
- To maintain the graded potential in the postsynaptic neuron
- To actively transport neurotransmitters back into the presynaptic cell
- To open ion channels in the postsynaptic membrane
- To quickly break down neurotransmitters and stop the signal (correct)
How do neurotransmitters affect the membrane potential of the postsynaptic neuron?
How do neurotransmitters affect the membrane potential of the postsynaptic neuron?
- Neurotransmitters have no effect on the membrane potential of the postsynaptic neuron
- Neurotransmitters always cause depolarization of the postsynaptic membrane
- Neurotransmitters only have excitatory effects on the postsynaptic membrane
- Neurotransmitters have either excitatory or inhibitory effects, depending on the receptor type (correct)
What is the primary mechanism by which neurotransmitters are inactivated and removed from the synaptic cleft?
What is the primary mechanism by which neurotransmitters are inactivated and removed from the synaptic cleft?
Which type of neurotransmitter receptor is responsible for the long-lasting, 'slow synaptic' effects?
Which type of neurotransmitter receptor is responsible for the long-lasting, 'slow synaptic' effects?
What is the primary function of synaptic vesicles in the presynaptic neuron?
What is the primary function of synaptic vesicles in the presynaptic neuron?
What is the primary function of synaptic vesicles in the presynaptic neuron?
What is the primary function of synaptic vesicles in the presynaptic neuron?
What is the primary function of the synaptic cleft in the synaptic transmission process?
What is the primary function of the synaptic cleft in the synaptic transmission process?
What is the primary function of ion channels in the postsynaptic neuron during synaptic transmission?
What is the primary function of ion channels in the postsynaptic neuron during synaptic transmission?
What is the primary role of neurotransmitters in the synaptic transmission process?
What is the primary role of neurotransmitters in the synaptic transmission process?
What is the primary function of neurotransmitter receptors on the postsynaptic neuron?
What is the primary function of neurotransmitter receptors on the postsynaptic neuron?
What is the primary difference between an EPSP and an IPSP in the postsynaptic neuron?
What is the primary difference between an EPSP and an IPSP in the postsynaptic neuron?
Which of the following is the primary mechanism by which neurotransmitters are released from the presynaptic neuron into the synaptic cleft?
Which of the following is the primary mechanism by which neurotransmitters are released from the presynaptic neuron into the synaptic cleft?
Which of the following is the primary function of ion channels in the post-synaptic neuron during synaptic transmission?
Which of the following is the primary function of ion channels in the post-synaptic neuron during synaptic transmission?
Which of the following neurotransmitters is primarily responsible for excitatory synaptic transmission in the central nervous system?
Which of the following neurotransmitters is primarily responsible for excitatory synaptic transmission in the central nervous system?
Which of the following is the primary mechanism by which inhibitory neurotransmitters, such as GABA, reduce the likelihood of the post-synaptic neuron reaching the action potential threshold?
Which of the following is the primary mechanism by which inhibitory neurotransmitters, such as GABA, reduce the likelihood of the post-synaptic neuron reaching the action potential threshold?
Which of the following is the primary mechanism by which temporal summation occurs at a single synapse?
Which of the following is the primary mechanism by which temporal summation occurs at a single synapse?
Which of the following is the primary mechanism by which spatial summation occurs at a single post-synaptic neuron?
Which of the following is the primary mechanism by which spatial summation occurs at a single post-synaptic neuron?
