At the laboratory experiment the leukocyte culture was mixed with staphylococci neutrophile leukocytes bacterial cells. This process is termed Phagocytosis Pinocytosis Diffusion Facilitated diffusion Osmosis

The correct answer is Phagocytosis.<br /><br />Phagocytosis is the process by which certain cells, such as leukocytes (white blood cells), engulf and digest large particles or microorganisms, such as staphylococci bacteria. This process is a type of endocytosis, where the cell membrane wraps around the particle and forms a vesicle that is then brought into the cell. The engulfed particle is then broken down and digested within the cell.<br /><br />Pinocytosis, on the other hand, is a type of endocytosis where the cell engulfs small particles or liquid from the surrounding environment. Diffusion, facilitated diffusion, and osmosis are all passive transport mechanisms that involve the movement of molecules or ions across a cell membrane without the use of energy.