Question

Q6. A neurotransmitter would have a greater chance of starting an action potential in a post-synaptic neuron by:


opening K+ channels in the post-synaptic membrane


causing a graded depolarization in the post-synaptic membrane


causing a graded hyperpolarization in the post-synaptic membrane


closing Na+ channels in the post-synaptic membrane

Answer 1

Answer:

a

Explanation:

Answer 2

Neurons secrete chemical molecules that act as messenger and takes part in signalling at the arrival of any chemical or electrical impulse are called a neurotransmitter.

The action potential can be started by:

Option a. Opening K⁺ channels in the postsynaptic membrane.

The action can be explained as:

• The presynaptic neurons are the active neurons that transmit the impulse from the synapse with the help of neurotransmitters.

• The resting neurons or the postsynaptic neurons upon receiving the impulse open the channel gates.

• The postsynaptic receptors interact with the neurotransmitter that leads to the opening or closing of the ionic channels on the membrane.

• This leads to depolarization of the membrane causing action potential to occur.

Thus potassium channels open.

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https://brainly.com/question/13076783