Cilia and flagella
Cell envelope and organelles · 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: Cells lining your windpipe have hundreds of cilia beating 10–20 times per second, sweeping mucus with trapped dust upward like a conveyor belt. A human sperm swims to the egg using one long flagellum beating 20–30 times per second.