biology-Diffusion & osmosis

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biology-Diffusion & osmosis

  1. 1. BY: PUTRY ENDAHSARI
  2. 2. Diffusion Diffusion is the movement of molecule from high concentration to the low concentration down concentration gradient.
  3. 3. Factors that affect diffusion: 1. The distance molecule have to travel 2. The concentration gradient 3. The surface area 4. The temperature 5. The size of molecule
  4. 4. Solute and Solvent • Solution is made up of two parts, the solute and the solvent. • Solute is the substance that dissolves in a solvent • Solvent is a liquid that dissolves substances.
  5. 5. Osmosis Osmosis is the diffusion of water molecule from dilute solution that have low concentration gradient to the concentrated solution that have low concentration through a partially permeable membrane.
  6. 6. Osmosis in plant and animal cells • Turgid is the strong cell wall stops the cell bursting, when the water get into the cell. • Wilt is when the cell are shrink, when the water go out from the cell. • Plasmolysid is the cytoplasm starts to move away from the cell wall. • Flaccid is these cells are no longer firms and become limp.

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