Active transport

• Osmosis

  The diffusion of water from a dilute solution to a concentrated solution through a semipermeable membrane
• Osmosis

  • Requires a semipermeable membrane
  • Moves water from low to high concentration
• Diffusion

  The spreading out of particles from an area of high concentration to an area of low concentration
• Osmosis

  Differs from diffusion in the concentration gradient
• Active transport

  The movement of substances from an area of low concentration to an area of high concentration, against the concentration gradient
• Active transport

  • Requires energy
  • Moves substances against the concentration gradient
• Plants

  • Use active transport to move mineral ions from the soil into the roots
• Some crocodiles

  • Have salt glands in their tongues to remove excess salt from their body by active transport
• Water is important to the Concan tribes
• The canon is higher as put in
• The teal are more active
• The difference is concentration
• Osmosis is the movement of water
• Active transport requires energy