High resolution view of early endosomes with coated evaginations at their margins.TEM taken on 8/15/67 by R. Allen with Philips 200 operating at 60kV. Neg. 19,200X. The raw film was scanned with an E...

Typical organization of gap junctions as seen in thin sections (upper) and replicas of freeze-fractured cell membranes (middle and lower). Upper, gap junction from the saccular macula of a goldfish; ...

Transmission electron micrograph of two frog epithelial cell cells showing the tight junction complex running horizontally in this image. Additional reference: Farquhar, M.G. and G.E. Palade. 1965. ...

Representative examples of gap junctions from vertebrates (ciliary epithelium from the eye of a Macaca mulatta, upper) and invertebrates (inverted gap junctions from cells of the mid-gut of the horses...

Cytosolic pressure may be one force used to expel the undigested contents from spent vacuoles, however, tubulation and retrieval of the spent vacuole membrane will ultimately eliminate all of the vacu...

Oblique section of the Coleps contractile vacuole pore revealing the supporting microtubules and adjacent fibrous layer. Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in al...

A high resolution of an oblique section of the Coleps contractile vacuole pore revealing the supporting microtubules and adjacent fibrous layer. Standard glutaraldehyde fixation followed by osmium tet...

Junctional complex between two cells in the epithelium of the rat intestinal mucosa. The tight junction (also known as zonula occludens) is the structure located nearest to the lumen. The elimination ...

Junctional complex between two cells in the epithelium of the rat intestinal mucosa. The tight junction (also known as zonula occludens, ZO) located nearest to the lumen extends from arrow 1 to arrow ...

Electron micrograph of the junctional complex of intestinal epithelial cells of the rat shows the apical-most zonula occludens (tight junction), the zonula adherens (medium junction) and the macula ad...