Question

Taste receptors detect the taste by

• A. G protein-coupled mechanism
• B. Contractile mechanism
• C. Feedback inhibition
• D. None of the above

Answer 1

The correct option is A G protein-coupled mechanism

• The taste receptors are located around the small structures known as papillae found on the upper surface of the tongue, soft palate, upper esophagus, the cheek, and epiglottis.
• Taste receptors detect the taste by G protein-coupled mechanism.
  
• G protein-coupled receptors constitute a large protein family of receptors that detect molecules outside the cell and activate internal signal transduction pathways and, ultimately, cellular responses. Coupling with G proteins.
  
• So, the correct answer is 'G protein-coupled receptor.