Active transport

• Active transport


  The movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration and requiring energy from cellular respiration
• Active transport


  • It always takes place across a membrane and requires special proteins that sit in the membrane and transfer the molecule from one side to the other
• The energy for active transport comes from cellular respiration which happens mainly in the mitochondria</b>
• Cellular respiration is the process that happens in the mitochondria when they break down glucose to release energy
• ATP

  Molecules that act like little batteries, taking the energy from the mitochondria to the different parts of the cell that need it
• Active transport

  1. Molecule binding

  2. Membrane transfer

  3. Energy from cellular respiration
• Root hair cells


  • They have a large surface area for absorption
  • They have lots of mitochondria