Taste and smell and similar in that in both cases:

Question

Accepted Answer

the receptor proteins that react with chemical stimuli are located on extensions  from the cells known as microvilli or cilia.

Answer

the cells that detect the stimulus are neurons.

Answer

the receptor cells are located on small papillae on the tongue or in the  nose.

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the receptor proteins which bind chemicals are located on the supporting  cells.

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the neurons from the receptor surface to the brain are replaced at regular  intervals.

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