Homework SourseChapter 8 Chapter Test Question 10 Part A Which of the follo
Chapter 8 Chapter Test Question 10
Part A
Which of the following is an INACCURATE description of both ionotropic and metabotropic receptors?
Which of the following is an INACCURATE description of both ionotropic and metabotropic receptors?
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Concepts in Human Physiology PCB4098 Spring 2017
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Ch 08 HW
Chapter 8 Chapter Test Question 10
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| Both affect ion channels. |
| Both can cause EPSPs and IPSPs. |
| Both are located on the presynaptic membrane. |
| Both can be associated with second messengers. |
Solution
Both are located on the presynaptic membrane.
Reason:
Both receptors are not associated with \"presynaptic location\" because inhibitory post-synaptic potentials are going to be produced by the activity of neurotransmitters on the post-synaptic ionotrophic receptors (ligand-gated channels, ex. glutamtae recpeptors or NMDA, AMPA receptors) that allow influx of ions into the cell result in either excitatory or inhibitory post synaptic potential, where no secondary messenger system is acting. The metabotropic G-protein coupled receptors can only act to generate \"second messenger system via post-synpatic location\". Therefore, both cannot be located on the pre-synaptic membrane
