Transmission electron micrograph of rat liver cell showing a grazing section through the nuclear envelope and illustrating the high density of nuclear pores in cells from a 1 day old animal. The cytop...

Early transmission electron micrograph of a thin section of a secretory cell from guinea pig pancreas showing endoplasmic reticulum at left and Golgi apparatus at right. Image made available by James...

Grazing thin section through the nuclear envelope of a macronucleus. Nuclear pores are packed so tightly that they often form a hexagonal array with 6 pores surrounding a central pore. The pores often...

Accumulation of golgi cupulas near a food vacuole. The food vacuole shown has already fused with many vesicles that have already added their membrane as well as their dense inner lining to the vacuole...

Quick-freeze deep-etch rotary shadowed replica of a parasomal sac from which a clathrin-coated preendosomal vesicle has pinched off. The typical clathrin cage structure is preserved. Fractured trichoc...

Acidosomes originate from the biosynthetic pathway that includes the ER, the Golgi stack and the trans-Golgi network (TGN). Flattened vesicles from the TGN round up into spherical vesicles and bind to...

A high resolution of a quick-freeze deep-etch rotary shadowed replica of a parasomal sac from which a clathrin-coated preendosomal vesicle has pinched off. The typical clathrin cage structure is prese...

Accumulation of golgi cupulas near a food vacuole. The food vacuole shown has already fused with many vesicles that have already added their membrane as well as their dense inner lining to the vacuole...

The endosomal compartment is enlarged in the ema[1] mutant. Colocalization between DVGLUT (red) aggregates and the endosomal ESCRT protein Hrs (green, also known as Vps27) in motoneuron cell bodies of...

A high resolution image of the pellicle of Opercularia coarctata. Indentations of the plasma membrane penetrate the alveolar membranes end as coated pits. These pits are also known as pellicular pores...