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Cell Biology (Cell structure (Animal Cells (Nucleus, Cytoplasm, Cell…
Cell Biology
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Cell Division
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A stem cell is an undifferentiated cell of an organism which can give rise to many other identical cells, which can differentiate
Stem cells can be obtained from bone marrow, embryo or meristem tissue
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Transport in cells
Diffusion is the spreading out of the particles of any substances in solution, or particles of a gas, resulting in a net movement from an area of high to low concentration
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Osmosis is the diffusion of water from a dilute to a conc solution through a partially permeable membrane
Active transport
Moves substances from an area of low concentration to higher concentration through a partially permeable membrane
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