diffusion

Cards (13)

  • Diffusion is the process by which molecules or ions spread out from an area of high concentration to an area of low concentration.
  • Osmosis is the diffusion of water across a partially permeable membrane.
  • <S>:The rate of diffusion depends on the concentration gradient, with movement occurring from higher to lower concentrations.
  • Diffusion is the movement of particles from an area of high concentration to low concentration.
  • non-permeable membranes do not allow any substances to pass through them at all
  • the movement of molecules from a region of high concentration to a region of low concentration along a concentration gradient
  • Active Transport is the transport of substances against their concentration gradient using energy (ATP)
  • Osmosis - The movement of water molecules from a region of high water concentration to a region of low water concentration through Selectively permeable membrane
  • Constantly moving liquid and gas molecules tend to move from an area of high concentration to an area of lower concentration
  • Molecules move down a concentration gradient
  • Concentration - The greater the concentration gradient the greater the diffusion rate
  • Temperature - At higher temperatures molecules have more kinetic energy and so move and diffuse faster
  • Pressure - molecules move quickly from an area of higher to lower pressure