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Facts about Cells

Lysosome. Quick look: Lysosomes are membrane bounded organelles found in animal and plant cells. They vary in shape, size and number per cell and appear to operate with slight differences in cells of yeast, higher plants and mammals.Lysosomes contribute to a dismantling and re-cycling facility.

The eukaryotic cytoskeleton. Actin filaments are shown in red, and microtubules composed of beta tubulin are in green.Actin cytoskeleton of mouse embryo fibroblasts, stained with phalloidin.Microscopy of keratin filaments inside cells.Microtubules in a gel-fixated cell.

Tiny blood vessels at the base of every follicle feed the hair root to keep it growing. But once the hair is at the skin's surface, the cells within the strand of hair aren't alive anymore. The hair you see on every part of your body contains dead cells.