Neurotransmitters that open Cl- channels in the post-synaptic cell membrane
a) Depolarize the post-synaptic cell membrane
b) Do not affect the electrical potential of the post-synaptic cell membrane
c) Produce a similar effect as neurotransmitters that open K+ channels in the post-synaptic cell membrane
d) Are called excitatory neurotransmitters.
The correct option is c) produce a similar effect as neurotransmitters that open k+ channels in the post synaptic cell membrane.
Explanation -
The opening of Cl- ion channels in the post synaptic cell membrane causes the change in its potential. It results in the hyperpolarisation of the membrane due to influx of the negativity charged Cl- ions into the neuron. Similar is the case of opening of K+ ion voltage gated channels that causes hyperpolarisation of the membrane potential, that is it becomes negative due to efflux of K+ outside the neurons. Therefore, such type of neurotransmitters are of inhibitatory type and not excitatory type.
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