COHESION

• WHAT DOES COHESION-TENSION THEORY EXPLAIN?

  how water moves up a plant
• WHAT DOES COHESION-TENSION THEORY CONSIST OF?

  • cohesion
  • capillarity (adhesion)
  • root pressure
• WHAT TYPE OF MOLECULE IS WATER?

  dipolar
• WHAT DOES WATER BEING DIPOLAR ALLOW FOR?

  hydrogen bonds to form between molecules
• WHAT DO HYDROGEN BONDS LEAD TO?

  cohesion between molecules (stick together)
• WHAT DOES COHESION LEAD TO?

  water travelling up a xylem as a continuous column
• COHESION EXPLANATION?

  • water is a dipolar molecule
  • hydrogen bonds to form between molecules
  • creates cohesion between molecules
  • molecules stick together
  • water travels up xylem as a continuous column