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Cell Division, Diversity & Organisation
The Cell Cycle and Mitosis

Cells divide for growth and repair. 2 identical cells are produced. Mitosis only takes up a small percentage of the cell cycle.
Interphase ­ Cells carry out normal functions but prepare to divide. The DNA is unravelled and replicated (organelles…

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o Root hair cells ­ Large surface area for absorption and a thin, permeable cell wall. Cytoplasm contains extra
mitochondria to provide energy needed for active transport.
o Guard cells ­ In light they open and take water into their vacuoles and become turgid. Their thin outer walls and
thickened…

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