12 Questions
What is the main function of neurotransmitters?
Conveying signals from a neuron to a target cell across a synapse
Which of the following is an example of a monoamine neurotransmitter?
Serotonin
In the neurotransmitter process, what happens during the step of 'Binding'?
Inhibits or releases; binds to postsynaptic receptors
Which neurotransmitter is both excitatory and inhibitory?
Acetylcholine
What is the function of muscarinic Ach receptors?
Responding to muscarine as well as acetylcholine
What distinguishes neuromodulators from neurotransmitters?
Neuromodulators have a slower response compared to neurotransmitters
What is the main difference between neurotransmitters and neuromodulators?
Neurotransmitters affect one or two postsynaptic targets at once, while neuromodulators affect a group of postsynaptic targets
Which type of ligand competes with the endogenous ligand for the same binding site on a receptor molecule?
Competitive ligand
What type of substance alters the response to an endogenous ligand?
Noncompetitive ligand
Which type of ligand binds to a receptor and does not activate it, preventing binding by other ligands?
Antagonist
What is the main characteristic of an inverse agonist?
It binds to the same receptors as an agonist and exerts the opposite effect
What is the effect of an agonist on a receptor?
It initiates normal effects of the transmitter on that receptor
Learn about neurotransmitters, the chemical messengers that transmit signals from a neuron to a target cell across a synapse. Explore the steps involved in the neurotransmitter process, including synthesis, storage, release, and diffusion.
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