Answer:
The correct answer is option B ( ligand gated channels opened by neurotransmitter molecules).
Explanation:
Input region or postsynaptic region or dendrite is the site of neuron cell which receives the impulse from the pre-synaptic neuron at the synaptic junction.
The cell membrane of the dendrite is embedded with ligand-gated channels which opens up in response to the ligand (neurotransmitters) produced by the neurotransmitter vesicle of axon or output region of neuron.
The neuromuscular junction is such a case where acetylcholine receptors present in the dendrite opens in the presence of acetylcholine.
Thus, option B ( ligand-gated channels opened by neurotransmitter molecules) is the correct option.
Answer:
A hope spot is an area of an ocean that needs special protection because of its wildlife and significant underwater habitats. The two group of islands, considered extremely rich in marine biodiversity, are the first places in India to have been added in the list of 50 global 'hope spots'.
A cell is the smallest unit of living matter
B <span>The </span>definition<span> of a </span>pathogenic organism<span> is an </span>organism<span> capable of causing disease in its host.</span>
