Biology · Coordination and Control
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In neurons, the message is transmitted across synapses in the form of a chemical messenger called __________.
- A
Communication
- B
Neurotransmitter
- C
Nerve impulse
- D
Nocireceptor
A neurotransmitter is a signaling molecule secreted by a neuron to affect another cell across a synapse. The cell receiving the signal, or target cell, may be another neuron, but could also be a gland or muscle cell. Hence, option B is the correct option.
There is no chemical messenger called communication. Hence, this option is incorrect.
Neurotransmitters are chemical messengers that transmit messages across synapses in neurons. Hence, this option is the correct one.
The nerve impulse is transmitted across synapses with the help of chemical messengers, called neurotransmitters. These chemical messengers cannot be called nerve impulses, because they are the cause of the transmission of nerve impulses. Hence, this option is incorrect.
Nocireceptor, also known as nociceptor, is the receptor for pain stimuli. It is not related to the transmission of nerve impulses across neuron synapses. Hence, this option is incorrect.
Tagged under Biology · Coordination and Control · 2022