translocation and transpiration

• translocation happens in the phloem cells. phloem tubes have pores at the end of each allowing cell sap (liquid mix of water and glucose) to be transported long distance. the glucose can either be stored or used for energy.
• the xylem cells are also used for translocation. they transport water and mineral ions from the roots to the leaves
• rate of transportation

  • light intensity- the higher the more photosynthesis taking place so more transpiration as stomata is open for co2 to come in
  • temperature- higher the temp the higher the rate of transpiration. more energy, more likely to evaporate
  • air flow- high air flow, high concentration gradient, increasing transpiration
  • humidity- higher humidity, decrease rate of transpiration as lower the concentration gradient so less water will diffuse