Cells Lab Links
PowerPoint Presentation
Image of a yogurt culture
Bacteria on the head of a pin
A series of pictures at increasing magnifications.
Viruses, Prokaryotes and Eukaryotes
The Biology Project at U. Arizona. Tutorial and self-test.
Cells Alive
The Cell Models section has diagrams and brief descriptions of cells and organelles.
Molecular Probes, Inc
sells fluorescent labels ("probes") that are used to visualize cellular components, usually using 3-D confocal microscopy.