Question

Identify the taste receptor of sweet taste.

• A. ENaC
• B. T2Rs
• C. PCKD channel
• D. T1R2 + T1R3

Answer 1

The correct option is D T1R2 + T1R3

• The upper surface of the tongue has small projections called papillae, some of which bear taste buds.
• About 50 -150 taste cells are found in a taste bud. These cells detect all 4 tastes i.e sweet, sour, salty and bitter
• The taste buds for "sweet" are on the tip of the tongue and have sweet receptors such as T1R2 + T1R3. These receptors have the ability to sense sweet taste and send signals to the brain.
• So, the correct answer is 'T1R2 + T1R3.'.