Ligand gated means controlled by the or signal molecule. If the door is closed, certain are blocked from entering the cell. When the or signal molecule is attached, the door is open for certain to enter the cell. These types of receptors are important in the .
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Ответ:
ligand; molecule; ligand; molecule; nervous system
Explanation:
Ligand-gated ion channels are membrane proteins that interact with ligands (molecules) and open in response to this binding. In the nervous system, these channels are activated by neurotransmitters (ligands) that regulate synaptic transmission between nerve cells (neurons). Neurotransmitters are signaling molecules clustered close to the cell membrane of axon terminals in presynaptic neurons. For example, glutamate is a ligand neurotransmitter that binds to ion channels and thus stimulates synaptic activity in the mammalian brain.
Ответ:
A mutation is a change in the sequence of an organism's DNA. What causes a mutation? Mutations can be caused by high-energy sources such as radiation or by chemicals in the environment.
Explanation: