Ans. The tongue which helps in perceiving tastes and flavors due to the presence of taste buds. The little bumps on the top of the tongue called Papillae consist of these taste buds on the tongue and it helps in sensing different tastes. The nose and tongue, together are associated with, deciding flavors and work together to create a taste. Chemoreceptors are the receptors present in the taste buds which function similarly to that those present in the nasal cavity. The four essential taste buds on the tongue are sweet, bitter, sour, and salty.