Question

Taste receptors are present over

• A. Taste buds
• B. Membrane
• C. Dermis
• D. None of the above

Answer 1

The correct option is A Taste buds

Specific chemicals in solution pass into the taste bud through the taste pore to come in contact with the protein receptor sites on the microvilli of the gustatory receptor cells. The latter set up nerve impulses in the sensory nerve fibres. The nerve fibres transmit the impulses to the taste centre in the brain where the sensation of taste arises. The facial nerve serves the anterior two-thirds of the tongue, the glossopharyngeal nerve serves the posterior one-third of the tongue. Sweet taste is on the tip of the tongue, salt taste is on the sides and tips of the tongue, sour taste is on the sides of the tongue and bitter taste is on the base of the tongue. Therefore, the taste receptors are present over the taste buds for the sensation.

So, the correct answer is 'Taste buds'.