Movement Across A Cell Membrane Group Work (Teresa)

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    Movement Across A Cell Membrane Group Work (Teresa) - Presentation Transcript

    1. Movement Across A Cell Membrane Any Difference In Plant And Animal Cells?
    2. What is a hypotonic solution Hypotonic solution: a solution with a lower salt concentration than in normal cells of the body and the blood .
    3. What is Hypertonic Solution ?
      • A Hypertonic solution is a solution with a higher salt concentration than in normal cells of the body and the blood .
    4. Movement of Water
      • Osmosis is when water particles move from an area of higher concentration to an area of lower concentration through a semi permeable membrane .
    5. How Does A Plant Cell Cope??
      • HYPOTONIC
      • In a hypotonic solution the plant cells harden due to the absorbing of water.
      • HYPERTONIC
      • in a hypertonic solution the plant cells cannot absorb the salt solution and so end up floppy.
    6. How Does An Animal Cell Cope ??
      • Hypotonic
      • In a hypotonic solution an animal cell tends to rupture due to osmotic pressure.
      • Hypertonic
      • In a hypertonic solution an animal cell tends to crenate (shrivel up due to loss of water ).
    7. The Difference Between A Plant and An Animal cell
    8. Why Transport In and Out Of Cells Is Important
      • The cell membrane is a semi-permeable tissue which controls what goes in and out of a cell.
      • Its acts as a barrier to most but not all molecules.
      • It allows some materials to pass through, whilst restricting others.
      • It separates The inner cellular environment from the outer cellular environment
      • It is important that this happens because it needs to allow molecules that we no longer need out of the cell whilst taking in those that we do need.

    + Tre GreerTre Greer, 2 years ago

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