Movement of transport against the concentration gradient and therefore requires energy (an active process)
From an area of lower concentration to an area of higher concentration
Always occurs across a membrane and requires special proteins which sit in the membrane and transfer the proteins from one side to the other
where does energy for active transport come from in a cell?
Energy comes from cellular respiration. This occurs at the mitochondria through the break down of glucose, and helps provide energy for the whole cell.
The energy is then stored into things called ATP (adenosine triphosphate)
What do ATP do?
Store energy produced from cellular respiration, and take the energy to parts of cell that need it
Give an example of how plants use active transport?
Root hair cells require active transport to absorb minerals. This is because they have a higher concentration of minerals in the cells than outside meaning they cant be absorbed via diffusion.
