Active Transport

• What is active transport?

  The movement of particles from lower to higher concentration against their concentration gradient.
• Why does active transport require energy?

  Because it moves substances against their concentration gradient.
• How do root hairs utilize active transport?

  They take up water and mineral ions from the soil against their concentration gradient.
• How does active transport function in the gut?

  It moves glucose and amino acids from the gut into the bloodstream against their concentration gradient.
• Why is active transport called active transport?


  Requires energy.