Identify the cell membrane and read the description window text. In this low-power view, the cell membrane appears as one single line as a border between the cytoplasm and the extracellular matrix. While looking at this picture, identify also the Golgi complex and read its description. Though not labeled, the dark-staining heterochromatin inside the undulating nuclear membrane is clearly visible. The trilaminar nature of the cell membrane is apparent in some regions.
All intracellular membranes look the same if viewed at sufficiently high magnification.
The dark-staining material inside the nucleus represents heterochromatin. This is from a liver cell, which is known to be very metabolically active. Therefore much of the DNA is present as euchromatin. Also identify the glycogen and read the description window. Although the glycogen granules on the left and the RER on the right are not labeled, identify them anyway.