Dissolve specimen, view film. Only see surface view -no internal detail visible. Infinite depth of focus, in contrast to light scopes. R.P. around 2 nm at best, usually a bit poorer. Mount on block and scan.
Some procaryotes do have internal compartments.
Some eucaryotic cells are very small. Some eucaryotes don't have sexual cycle. Distinctive eucaryotic features Nucleus . Multiple replication origins . During division, chromatin condenses by tight coiling into chromosomes, may be visible in light microscope.