Which of the following is not a step of action of nerve impulse?

Which of the following is not a step of action of nerve impulse? Correct Answer Guanosine monophosphate to guanine

“Guanosine monophosphate to guanine.” This is a part of the pathway of purine degradation by 5I – nucleotidase. Steps involved in action of nerve impulse are: • Release of acetylcholine during exocytosis into the synaptic cleft. • Activation of acetylcholine receptor by binding of 2 molecules of released acetylcholine which opens the channels of small cations such as Na+. • Production of muscle action potential due to inflow positively charged sodium ions. • Termination of acetylcholine by acetylcholine esterase which is attached to collagen fiber in extracellular matrix of synaptic cleft.

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Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.
The human eye is a complex part of the body that is used for seeing. Eyes enable people to perform daily tasks and to learn about the world that surrounds them. Sight, or vision, is a rapidly occurring process that involves continuous interaction between the eye, the nervous system, and the brain. When someone looks at an object, what he really sees is the light reflected from the object. This reflected light passes through the lens and falls on the retina of the eye. Here the light induces nerve impulses that travel through the optic nerve to the brain and then over other nerves to muscles and glands.
The eye is similar to a television camera. Both the eye and the television camera convert light energy to electrical energy. The eye converts light to nerve impulses that are interpreted by the brain as the sense perception called sight. A television camera converts light to electronic signals that are broadcast and transformed into light images in a television receiver. It is wonderful that human eyes blink an average of once every six seconds. This washes the eye with the salty secretion from the tear or lachrymal glands. Each tear gland is about the size and shape of an almond. These glands are situated behind the upper eyelid at the outer corner of the eye. After passing over the eye, the liquid from the gland is drained into the nose through the tear duct at the inner corner of the eye. The sense perception that the brain releases after the eye converts light to nerve impulses is known as
Fill the half-filled code snippet to get the following graph: impulse(1,, ‘red’); ____; impulse(1,, ‘blue’); impulse(1,, ‘yellow’); impulse(1,, ‘green’);