Higher Cell Biology

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  • Created by: Kate_xo
  • Created on: 08-09-13 16:02
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  • Cell Biology
    • Osmosis In Cells
      • Plant Cell
        • Pure Water - Cell is turgid
        • 0.85% salt solution - remains unchanged
        • 1.7% salt solution - cell is plasmolysed and flaccid
      • Animal Cell
        • Pure water - cell bursts
        • 0.85% salt solution - remains unchanged
        • 1.7% salt solution - cell shrinks
    • Structure and Function
      • Red Blood Cell
        • small size and biconcave to present large surface area for oxygen
        • rich supply of haemglobin present
        • No nucleus so there is more room for oxygen
      • Palisade Cell
        • chloroplasts present
        • columnar shape to allow green layer to be presented to light
      • Phloem
        • sieve tube
        • Companion cell
        • continuous system of cytoplasmic strands
      • Xylem
        • Hollow tube
        • lignin deposited in rings to allows for expansion and contraction

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