Electron microscopy (TEM and SEM)
Microscopy in cell biology · Biology
Animal cell explorer
Interactive 3DPeek inside an animal cell — pick an organelle to highlight it and learn its job.
Controls
Drag the sliders or type a value — the simulation updates live.
Study notes
Example: A TEM image of a mitochondrion shows its double membrane and folded cristae in cross-section — like slicing a cake to see layers. An SEM image of pollen shows its spiky 3D surface, as if photographed with a macro lens. Neither can view living cells.