Pinocytosis is the ingestion of dissolved materials by endocytosis. The cytoplasmic membrane invaginates and pinches off placing small droplets of fluid in a pinocytic vesicle. The liquid contents of the vesicle is then slowly transferred to the cytosol.

GIF Animation of Pinocytosis .gif by Gary E. Kaiser, Ph.D.
Professor of Microbiology, The Community College of Baltimore County, Catonsville Campus
This work is licensed under a Creative Commons Attribution 4.0 International License.
Based on a work at http://faculty.ccbcmd.edu/~gkaiser/index.html.

Last updated: August, 2019
Please send comments and inquiries to Dr. Gary Kaiser