A white blood cell at the site of a puncture wound engulfs a large cluster of bacteria forming a large internal vesicle.This is an example of

Question

Quizplus · Accepted Answer

Phagocytosis is the process by which a cell engulfs and internalizes large particles, such as bacteria or cell debris. This is exactly what is happening in the scenario described, as the white blood cell engulfs a large cluster of bacteria forming a vesicle within the cell. Exocytosis is the opposite process, where a cell releases internal contents to the outside. Pinocytosis is the process by which a cell takes in small droplets of fluid from its surroundings. Receptor-mediated endocytosis is a specific form of endocytosis in which molecules bind to specific receptors on the cell membrane before being internalized. None of these processes fit the scenario described, making phagocytosis the best choice.

A White Blood Cell at the Site of a Puncture