Active Transport

• What is active transport?

  movement of molecules in/out of cell, from region of high concentration to area of low concentration, with the use of carrier proteins and ATP
• Describe the process of active transport

  • molecule/ion binds to receptor of carrier protein
  • ATP binds to carrier protein and splits into ADP and phosphate
  • phosphate remains bound to carrier protein, causing it to change its shape
  • molecule/ion released opposite side of membrane
  • phosphate released carrier protein and reverts back to its original shape