Give two differences between active transport and passive transport?

Answer 1

Active transport requires energy, passive transport just happens. If there is more of a certain molecule on one side of a membrane than the other, molecules that CAN fit through the membrane will do, so the concentration will even itself out. No work has to be done to achieve this. SO when you breathe in, oxygen just diffuses across from the air into your blood, because there's plenty of it in the air. But if a plant needs to get say magnesium from the soil (which it needs to make chlorophyll) then it is not going to get much by diffusion, because there's not much in the soil and probably more in the plant. It will need to use active transport ie a protein in the cell wall will pick up the substance wanted and flip it into the cell, and this costs the cell some energy.

Answer 2

passive does not use energy, active does. Active moves molecules from areas of low concentration to areas of high concentration, while passive moves molecules from areas of low concentration to areas of high concentration.

Answer 3

Passive transport goes toward equilibrium, active transport goes away from equilibrium.

Active transport requires energy, passive transport does not.

Answer 4

1) active and passive spelt differently

2) both active and passive have different meanings