Biology › Plant transport and mineral nutrition

Plant transport and mineral nutrition

Unit B08 · 3 lessons published so far.

• Xylem and the transpiration stream: the pull comes from the top
  Root hair cells and the uptake of water and mineral ions, the apoplast and symplast routes across the cortex, the Casparian strip at the endodermis…
• Transpiration: the price of keeping the stomata open
  Transpiration defined and explained as a consequence of gas exchange, the effect of light, temperature, humidity and air movement on the rate, the…
• Phloem and translocation: pumped at the ends, flowing in the middle
  The structure of sieve tube elements, sieve plates and companion cells, active loading of sucrose by proton pumping and co-transport, the mass flow…

Practical work that lands here

• Water relations of plant tissue: osmosis and transpiration