Final answer:
Pinocytosis is the process in which fluid and solute are ingested into a cell by budding of small vessels from the cell membrane.
Step-by-step explanation:
Budding of small vessels from the cell membrane is a process known as endocytosis. There are two types of endocytosis: pinocytosis and phagocytosis. Pinocytosis is the form of endocytosis where fluid and solute are ingested into the cell by the budding of small vesicles from the cell membrane. This process allows the cell to take in extracellular fluid and dissolved substances.
Learn more about Endocytosis