B2__Organsiation

Transpiration

It is the process of water evaporating from leaves.

  • Starts with evaporation of water from cells inside the leaf
  • Water vapour diffuses through air spaces spongy mesophyll
  • Exits out the stomata
  • Now water from xylem passes into leaf to replace water that’s been lost
  • Finally water is drawn in from root hair cells up the xylem to leaf

Translocation

Translocation is the movement of sugar and other molecules through Phloem