Differential interference contrast micrograph of a Micrasterias, a type of green alga called a desmid. Each cell is constructed of two semicells which are mirror images of each other. The two semice...

The P-face of the plasma membrane of a semicell engaged in the synthesis of the secondary wall. Hexagonal arrays of rosettes of varying size and shape can be observed. The large circular indentation...

Micrograph illustrating the general preservation of the cytoplasm in a Micrasterias cell stabilized by ultrarapid freezing. P-face of RER membranes depicting several spiral imprints of polysomes. The...

The P-face of the plasma membrane of a semicell engaged in the synthesis of the secondary wall. Hexagonal arrays of rosettes of varying size and shape can be observed. The large circular indentation...

Micrograph illustrating the Golgi apparatus and rough endoplasmic reticulum (RER) cell stabilized by ultrarapid freezing. Note the relationship of the RER membrane to the Golgi complex. Technical d...

Low-power micrograph illustrating the general preservation of the cytoplasm in a Micrasterias cell stabilized by ultrarapid freezing. The large, sheetlike membranes of the rough endoplasmic reticulum...

Micrograph illustrating the general preservation of the cytoplasm in a Micrasterias cell stabilized by ultrarapid freezing. E-face of RER membranes depicting several spiral imprints of polysomes. Th...

The P-face of the plasma membrane of a semicell engaged in the synthesis of the secondary wall. Hexagonal arrays of rosettes of varying size and shape can be observed. Propanejet freezing. Technica...

The E-face of the plasma membrane of a semicell engaged in the synthesis of the secondary wall. Hexagonal arrays of rosettes of varying size and shape can be observed. The large circular indentation...

The P-face of the plasma membrane of a semicell engaged in the synthesis of the secondary wall. Hexagonal arrays of rosettes of varying size and shape can be observed. The large circular indentation...