Active Transport in plants and humans
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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 -
Errrr, osmosis? diffusion?
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err nono those 2 are from higher concentration to lower concentrationOriginally posted by ditzy:Errrr, osmosis? diffusion?
err active transport is as abv
correct mi if i m wrong thks fer ur reply newae -
Plants use active transport.
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An example is sodium-potassium pump. Proteins transport sodium ions out of cell, and potasium ions into cell. Both against concentration gradient.
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You are right.Originally posted by gobez14:err nono those 2 are from higher concentration to lower concentration
err active transport is as abv
correct mi if i m wrong thks fer ur reply newae -
Active Transport in Plant.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
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.