Stem cells are cells that have NOT specialised
Examples of specialised cells
Fat Cells
- have very little normal cytoplasm so they have more room for fat
- have very few mitchondria as they use very little energy
- can expand x1000 times its original size
Cone Cells - from eye
- the outer segment is filled with a special chemical called VISUAL PIGMENT which changes chemically in different coloured light
- the middle segment has lots of mitochondria - producing more energy
- special nerve ending to connects to the optic nerve
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