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What is a molecule such as a neurotransmitter or a hormone that binds to a receptor called?
A molecule such as a neurotransmitter or hormone that binds to a receptor is called a ligand. This binding triggers a biological response in the target cell, influencing its function.
How do benzodiazepines interact with the GABA receptor to produce their therapeutic effects?
Benzodiazepines enhance the activity of the neurotransmitter GABA at its receptor in the brain, which leads to a calming and sedative effect. This interaction helps to reduce anxiety, promote relaxation, and improve sleep quality.
What is the relationship between a receptor and a neurotransmitter in the process of signal transmission within the nervous system?
Receptors are proteins on the surface of nerve cells that bind to specific neurotransmitters, which are chemical messengers. When a neurotransmitter binds to a receptor, it triggers a series of events that allow the nerve cell to transmit signals to other cells in the nervous system. This interaction between receptors and neurotransmitters is essential for communication within the nervous system.
Neurotransmitters are released in a synapse and bind to?
a receptor structure in a ligand-gated sodium-ion pore. The receptor is like a cave which is an outer part of a protein structure which also has a tunnel which can be open or closed, and the presence of the neurotransmitter causes the tunnel (pore) to open.
Neurotransmitters find their way to and subsequently trigger firing of that neuron?
Excitatory neurotransmitter
What happens when acetycholine binds to its receptor in the sarcolemma and triggers?
When acetylcholine binds to its receptor in the sarcolemma of a muscle cell, it triggers an action potential to be generated along the muscle cell membrane. This action potential then spreads along the sarcolemma and eventually leads to muscle contraction by initiating the release of calcium ions from the sarcoplasmic reticulum.
What is the advantage of having multiple receptor subtypes for a neurotransmitter?
Multiple receptor subtypes allow for more "fine-tuned" neuromodulation of a given "signal" in a neural network. Each receptor subtype typically has a different binding affinity for the given neurotransmitter. Therefore, the neurotransmitter may bind more strongly or more weakly to one subtype over another. This is most likely an effect of genetic variation, as the genes coding for the protein(s) present in the receptor slightly vary from subtype to subtype, yet still allow for binding by the neurotransmitter ligand.
Which structure is like a locked door that only certain neurotransmitter key can unlock?
Since only 1 neurotransmitter fits in the receptor sites, you can say that the receptor sites is the locked door waiting for the neurotransmitter "keys".
Which neurotransmitter inhibits pain transmission?
SEROTONIN is a neurotransmitter that inhibits pain by blocking pain causing chemicals out of their receptor sites
What are the molecules that are similar enough to a neurotransmitter to bind to its receptor sites on a dendrite and mimic that neurotransmitter's effects called?
Molecules that are similar enough to a neurotransmitter to bind to its receptor sites on a dendrite and mimic its effects are called agonists. These can be naturally occurring substances or synthetic drugs that activate receptor sites, leading to similar physiological responses as the original neurotransmitter. Examples include morphine, which mimics endorphins, and nicotine, which mimics acetylcholine.
What is a molecule such as a neurotransmitter or a hormone that binds to a receptor called?
A molecule such as a neurotransmitter or hormone that binds to a receptor is called a ligand. This binding triggers a biological response in the target cell, influencing its function.
What adrenergic neurotransmitter receptor plays a role in heart activity?
beta neuron
Is the binding of a neurotransmitter on the post-synaptic membrane receptors reversible or irreversible?
The binding of a neurotransmitter to post-synaptic membrane receptors is generally reversible. This allows for the neurotransmitter to dissociate from the receptor after it has activated it, enabling the synaptic signal to be transient and the receptor to be available for subsequent neurotransmitter binding. This reversible interaction is crucial for proper synaptic function and communication between neurons.
What are holes in the surface of the dendrites or certain cells of the muscles and glands that are shaped to fit only certain neurotransmitters?
Neurotransmitter receptor sites on ligand-gated ion pores.
A good analogy for the way in which a neurotransmitter binds to receptor sites is?
a key fitting in the lock of a door
What determines whether a neurotransmitter will have an inhibitory excitatory effect?
How a neurotransmitter interacts with the receptors determines its effects. They activate receptors to perform specific functions in the body.the type of receptor
The same receptor can have different effects depending on the properties of the?
ligand that binds to it. For example, a receptor can trigger different signaling pathways or cellular responses if it binds to different ligands, even if they bind to the same binding site on the receptor. This is known as ligand-dependent receptor activation.
