Passive VS Active
no energy VS energy
Passive transport
A kind of transport by which ions or molecules move along a concentration gradient, which means movement from an area of higher concentration to an area of lower concentration
It requires NO energy
Active Transport
A kind of transport wherein ions or molecules move against a concentration gradient, which meansmovement in the direction opposite that of diffusion – or – movement from an area of lower concentration to an area of higher concentration. Hence, this process will require expenditure of energy, and the assistance of a type of protein called a carrier protein.
It requires energy