The contractile vacuole pore is supported on its cytosolic side by a coil of microtubules and other microtubules extend from the pore to the CV membrane. The plasma membrane and CV membrane cover the ...

TEM image of frozen hydrated soluble chromatin isolated from COS-7 cells and vitrified in 15 mM monovalent ions. The chromatin adopts an irregular zigzag fiber conformation. See Fig 2 in J Bednar et ...

Higher magnification of acidosomes docked at the nascent digestive vacuole membrane. The E-fracture face is relatively IMP free while the P-fracture face has many large IMPs as well as some sizable pi...

The nascent phagosome membrane has a dense coat of acidosomes docked at its cytosolic surface well before the nascent vacuole pinches off the cytopharynx. This micrograph is a quick-freeze deep-etch i...

This is a view of apical domains of two adjacent hepatocytes showing the junctional complexes that attach cells to one another. The canaliculus is defined by the cell membranes of two adjacent liver c...

This is a view of apical domains of two adjacent hepatocytes in the guinea pig liver, showing the junctional complexes that attach cells to one another. The bile canaliculus (BC) is defined by the cel...

Morphology of the endoplasmic reticulum during a period of rapid cell differentiation. This micrograph shows two typical patterns of rough endoplasmic reticulum (RER) in developing liver from a one da...

Portion of a proximal convoluted tubule from a rat kidney with experimental hemoglobinuria. A mass of dense hemoglobin completely fills the tubule lumen and outlines the microvilli of the brush border...

Four centrioles imaged in one electron micrograph of a thin section, cut from a Chinese hamster fibroblast grown in tissue culture. The two centrioles that appear circular are the 'mother' centrioles,...

Transmission electron micrograph of a thin section of a HeLa cell treated to reveal components of the endocytic pathway. Epidermal growth factor (EGFR) is labeled with 10 nm immuno-gold particles and ...