Originally posted by gobez14:
err active transport is movement of molecules from lower concentration to higher concentration and energy is needed
but my qn is examples of active transport got wad ar?
this is sec 2 topic btw
Active Transport in Plant.
One example is Calcium ions.
Diffusion

The soil water around the root hair have higher concentration of calcium ion as compared to hair. Therefore, it will diffuse into the root hair cell.
Active Transport

Root hair cell can still absorb Calcium ions even when the amount of Ca ions in the Root hair is higher than the surronding soil water
Calcium ions are absorb into the root hair cell which are against the concentration gradient. Meaning absorbing from
Higher concentration to lower concentration.
Since it's against the concentration gradient, it require energy to carry out this process.