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Taste receptors A. For sour taste predominate at the sides of the tongue. B. May respond to more than one modality of stimulus. C. Give rise to a sour taste when stimulated by hydrogen ions. D. Cannot detect small ( 10 per cent) differences in the concentration of taste-evoking chemicals. E. Respond more to substances in warm solutions than in cold ones even though the substance concentration is the same in both. |
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Answer» A. True Receptors for bitter taste predominate on the posterior dorsum of the tongue. B. True Recording from single taste receptors demonstrates that a single receptor can respond to more than one modality. C. True All acids taste sour. D. True Taste receptors are poor at discriminating between intensities; a concentration difference of more than 30 per cent is needed for discrimination. E. True Food flavour is accentuated when hot; unpleasant medicine less offensive when cold. |
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