Channels in plant cell walls, called plasmodesmata, provide molecules with a bridge to move between cells, an essential ...

Cells have extensive sets of intracellular membranes, which together compose the endomembrane system. The endomembrane system was first discovered in the late 1800s when scientist Camillo Golgi ...

Porter in 1945 made the first electron microscope photograph of a cell. He devotes special attention to endoplasmic reticulum, the cellular structure involved in the synthesis of proteins which ...