- Active Uptake
- Active uptake is the movement of molecules form an area go LOW concentration to an area of HIGH concentration.
- This requires energy since molecules are moving against the concentration gradient
- Oxygen is also required for aerobic respiration (needed to produce the energy for active transport
- Active uptake requires eery which is generated by respiration the more oxygen gas there i available the after respiration takes place releasing more energy
- Th emore energy is released the faster the rate of active uptake, absorbing more nitrates into the root hair cell
- Waterlogged soils have less oxygen