What is agave used for in tequila?

Tequila is a distilled spirit made from the blue agave plant. The entire agave plant is used to make tequila, including the leaves, the heart, and the roots. The leaves are used to make the pulp, which is then fermented to produce alcohol. The heart of the agave plant is called the "piña", and it is also used to make the pulp. The roots of the agave plant are used to make the distilling water, which is used to produce tequila.