Gustatory receptors are sensitive to all of the taste qualities except for spicy.
Gustatory receptors are present on the tongue of humans where they function to sense the flavors of variety of food that one consumes. These receptors are present within the taste buds of tongue. These receptors can sense tastes like sweet, sour, salty, bitter, and umami.
Receptors are the proteinaceous structures that interact with a molecule called ligand for which they are specific to initiate a signaling. This signaling is intended to achieve some function of the body. They can be of two types: cell-surface receptors and soluble receptors.
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