Respuesta :
The question is incomplete as it does not have the options which are:
A) relay molecule
B) transducer
C) signal molecule
D) response molecule
Answer:
C) signal molecule
Explanation:
The transmission of signals in the neurons takes place in the form of electrical energy and chemical energy. The signals get transmitted in the form of electrical signals inside the neurons but when the signals have to be passed on to the next neuron on the pathway then the electrical signals get converted into the chemical signals.
The electrical signals cause the release of the chemical signals molecules called neurotransmitter from the synaptic vesicles in the presynaptic neuron and also opens the gated ion channels at the terminal. The neurotransmitter thus acts as a signal molecule in the transmission of a signal through neurons.
Thus, C) signal molecule is the correct answer.
When a neuron responds to a particular neurotransmitter by opening gated ion channels, the neurotransmitter is serving as a signal molecule.
The opening and closing of ion channels is regulated by various factors; a specific stimulus or sensor is what determines that they fluctuate from one state to another by altering their composition.
- The neurotransmitter is the chemical signal that a neuron releases to communicate with other cells.
- These ion channels open in response to the binding of certain molecules and neurotransmitters serving as signal molecule.
- This opening mechanism is due to the interaction of a chemical substance (which can be a hormone, a peptide or a neurotransmitter) with a part of the channel called the receptor.
- The interaction when the neurotransmitter is serving as a signal molecule generates a change in free energy and modifies the conformation of the protein by opening the channel.
Therefore, we can conclude that when a neuron responds to a particular neurotransmitter by opening gated ion channels, the neurotransmitter is serving as a signal molecule.
Learn more here: https://brainly.com/question/10107312
