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as they change they develope different subcellular structure turning into diffent type of cell a better type of cell
As organisms develope differenciation occurs
Animals loss the ability to differenciate at a EARLY STAGE after becoming specialised
Plant cells NEVER loss the ability to differencate .
Most mature animals mainly differentiate for replcing cells like SKIN OR BLOOD CELLS
Cells that undifferentiate are called stem cells
SPERM CELLS
(Specialised/Job) Reproduction
(Function)Get the male DNA to female DNA
(Structure) Long tail & Streamlined head to swim to the egg rapidly and easily
Mitochondria to produce enough energy needed.
Carries Enzymes in head to digest through eggs cell membrane
NERVE CELLS
(Specialised/Job) Rapid signalling
(Function)carry electrical signals from one part of the body to another
(Structure) Long cells to cover big distances
Branched connections at ends to connect to other nerve cells forming a network
MUSCLE CELLS
(Specialised/Jobs)Contraction
(Function)Contract quickly
(Structure)Long cells for enough space to contract
Contain lots of mitochondria for energy in contraction
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