These are all types of active transport involving the movement of materials across a cell membrane. Phagocytosis refers to the process of engulfing large particles, pinocytosis involves taking in fluids or solutes, and exocytosis is the release of materials from a cell.
Endocytosis
The process is called endocytosis, which involves the cell engulfing a substance by forming a vesicle around it. There are different types of endocytosis such as phagocytosis (engulfing solid particles) and pinocytosis (uptaking liquid substances).
Phagocytosis is the cellular intake of large molecules (e.g. proteins, polysaccharides) by pseudopodia; a large food vacuole is formed. Pinocytosis is the cellular intake of small molecules dissolved in the extracellular fluid; a smaller vesicle is formed. In both cases, matter is entering the cell.
Phagocytosis and pinocytosis are both types of endocytosis, which occurs when a substance is brought into the cell. Phagocytosis is called cell eating, while pinocytosis is referred to as cell drinking.
Endocytosis:==> Phagocytosis or Pinocytosis. Endocytosis is the name given to the process of cells absorbing molecules. Pinocytosis is intended for small molecules Phagocytosis is for large particles. (larger then ~around 0.75 µm in diameter)
The process known as phagocytosis is responsible for engulfing and digesting particles such as bacteria, dead cells, or foreign substances by a cell. During phagocytosis, the cell membrane extends to surround the particle, forming a vesicle that is then fused with lysosomes for digestion.
The process of engulfing small dissolved particles in the cell is called pinocytosis. During pinocytosis, the cell membrane surrounds and takes in fluid and solutes from its surroundings.
Pinocytosis is the introduction of fluids into a cell by invagination of the cell membrane, followed by formation of vesicles within the cells. Phagocytosis is the engulfing and ingestion of bacteria or other foreign bodies by phagocytes.
Endocytosis includes phagocytosis, pinocytosis, and receptor-mediated endocytosis. Phagocytosis is the process by which cells engulf large particles or pathogens, pinocytosis is the engulfing of fluids or small particles, and receptor-mediated endocytosis involves the uptake of specific molecules bound to receptors on the cell surface.
Pinocytosis is the process by which a cell engulfs liquids or small particles by forming vesicles. Phagocytosis, on the other hand, is the process by which a cell engulfs solid particles by forming pseudopods around the particle to form a vacuole. Both processes are accomplished by the cell's plasma membrane.
When the cell engulfs large fragments of matter, it is called phagocytosis. Endocytosis is a broader term that encompasses phagocytosis and pinocytosis, which involves the uptake of liquids and small particles. Exocytosis, on the other hand, refers to the process of expelling materials from the cell. Therefore, the correct terms are phagocytosis and endocytosis.