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Synaptic signaling between adjacent neurons is like hormone signaling in which way?
Wiki User
∙ 13y ago
Nerves communicate at specialized cell junctions known as synapses. In response to some stimuli, in many cases an action potential, the pre-synaptic nerve releases signal molecules into the space between the two cells (the synaptic cleft). The signaling molecule is then bound by a receptor on the post-synaptic neuron.
In this fashion "instructions" can be communicated between neurons. Generally binding of the messenger signal leads to the opening of an ion channel in the post-synaptic nerve causing that nerve to either become more or less excited. In the case of more excited the post-synaptic neuron will approach being able to fire its own action potential if it is excited enough.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoIt requires binding of a signaling molecule to a receptor
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How do hormones send messages?
The cells that react to a given hormone have special receptors for that hormone. When a hormone attaches to the receptor protein a mechanism for signaling is activated.
What is the first step in epinephrine signaling?
the hormone binds to an epinephrine receptor on the cell surface
Why do lipid soluble signaling molecules like testosterone cross membranes of all cells but effect only target cells?
Because response of a cell to a signaling requires that the responding cell have receptors that recognize that hormone. Only target cells of a signal have the receptors for the signal.
What is the biological importance of unsaturated fats?
The purpose of fats is to help store and use energy, padding of the organs, hormone production, as well as signaling and stabalizing processes in the body.
The old saying one rotten apple spoils the whole barrel is due to chemical signaling in plants via?
release of ethylene gas, a plant hormone for ripening
What hormone is responsible fr signaling the beginning of puberty?
Testosterone.
What are the main differences between between a hormone response and synaptic transmission?
A hormone response is far-reaching and can affect more than one cell or tissue group and can last minutes to hours, even days. Synaptic transmission is strictly locally acting and is over and done with shortly after it begins (i.e, the neurotransmitters are quickly cleared to prevent ongoing stimulation).
How do hormones send messages?
The cells that react to a given hormone have special receptors for that hormone. When a hormone attaches to the receptor protein a mechanism for signaling is activated.
Which structure contains vesicles with acetylcholine?
Synaptic vesicles in the neuromuscular junction contain acetylcholine (ACh) which is the neurotransmitter for initiating muscular contractions.
What is the first step in epinephrine signaling?
the hormone binds to an epinephrine receptor on the cell surface
What seasons do flowers grow in and why?
Flowers bloom when a signaling pathway hormone (e.g. florigen) rises above a critical level. Signaling is determined by one or more factors like day length, temperature, or rainfall.
Why do lipid soluble signaling molecules like testosterone cross membranes of all cells but effect only target cells?
Because response of a cell to a signaling requires that the responding cell have receptors that recognize that hormone. Only target cells of a signal have the receptors for the signal.
Between what hormone pairs is the interaction between hormones not an example of the permissive effect of a first hormone for a second hormone?
Insulin for glucagon on adipose tissue.
The old saying one rotten apple spoils the whole barrel is due to chemical signaling in plants via?
release of ethylene gas, a plant hormone for ripening
What is the biological importance of unsaturated fats?
The purpose of fats is to help store and use energy, padding of the organs, hormone production, as well as signaling and stabalizing processes in the body.
What is the importance of unsaturated fats?
The purpose of fats is to help store and use energy, padding of the organs, hormone production, as well as signaling and stabalizing processes in the body.
Why target cell respond to the hormone while others are uneffected?
Target cells respond to hormones because they have specific receptors for the hormone on their cell membrane or inside the cell. These receptors enable the hormone to bind and initiate a cellular response. Other cells that do not have the specific receptors for that hormone are unaffected because they cannot bind to the hormone or activate the necessary signaling pathways.
