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Khan Academy
Khan Academy: Bulk Transport: Endocytosis, Phagocytosis and Pinocytosis
A video discussing bulk transport. Learn the process of using membrane bound vesicles to bring materials into the cell. [4:37]
Khan Academy
Khan Academy: Exocytosis
Video lesson provides an introduction to exocytosis, how the cell transports molecules (such as proteins) out of the cell. [4:16]
Cells Alive
Cells Alive!: Phagocytosis
Real pictures of one type of endocytosis, commonly known as phagocytosis. The site also includes a brief video.