Transport in Xylem

• Xylem tissue transports water and mineral ions from the roots to the leaves
• Photosynthesis is the process where plants produce glucose using CO₂ and light
• Factors affecting transpiration rate

  • Light - the lighter it is the faster the transpiration rate
  • Temperature - the higher the temperature the faster the transpiration rate
  • Humidity - the lower the humidity, the faster the transpiration rate
  • Wind - the windier it is, the faster the transpiration rate
• Transpiration is the evaporation of water from a plant's surface, especially the leaves
• Phloem tissue transports organic substances like sugars both up and down the plant
• Transpiration is a side effect of photosynthesis, where the plant needs to open its stomata to let in CO₂ for glucose production
• Xylem


  Transport tissue in plants responsible for moving water and mineral ions
• Water movement in plants

  1. Water evaporates from the leaves creating tension (suction) which pulls more water into the leaf

  2. Water molecules are cohesive, so when some are pulled into the leaf others follow, allowing the whole column of water in the xylem to move upwards

  3. Water enters the stem through the roots, following the cohesion-tension theory of water transport