The respiratory cilia can "taste" bitter toxins and beat more rapidly to remove the toxins from the airway.

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Quizplus · Accepted Answer

This statement is true. The respiratory cilia, which are tiny hair-like structures in the airway, have been found to contain receptors that are sensitive to bitter compounds. When these compounds are detected, the cilia beat more rapidly in order to remove the toxins from the airway and prevent them from entering the lungs. This is an important defense mechanism that helps to protect the respiratory system from harmful substances.

The Respiratory Cilia Can "Taste" Bitter Toxins and Beat More