Final answer:
Within a taste bud, taste cells have tiny projections called taste microvilli which protrude through openings called taste pores
Step-by-step explanation:
Taste buds are formed by groupings of taste receptor cells with hair-like extensions called microvilli that protrude into the central pore of the taste bud. These taste cells are replaced every 10 to 14 days. These taste cells have tiny projections called microvilli that extend into the central pore of the taste bud. These projections are responsible for detecting taste molecules. The openings where these microvilli protrude through are called taste pores.
When food molecules bind to the receptors on the microvilli, it stimulates the taste cells and generates nerve impulses that are transmitted to the brain to perceive taste. Therefore taste buds on the tongue contain taste receptor cells with microvilli projections that detect taste molecules through taste pores.