Chapter 5, Problem 15SQ

Summary Introduction

Introduction: Exocytosis and endocytosis move particles and substances in bulk across the plasma membrane. In exocytosis, a cytoplasmic vesicle joined with the plasma membrane, and its contents are released to the outside of the cell. With endocytosis, a patch of the plasma membrane that folds inside forms a vesicle that sinks into the cytoplasm. Some cells engulf large particles or pathogens by endocytosis pathway called phagocytosis.