What are three differences and two similarities between active and passive transport?

Differences

Passive transport doesn't require energy (ATP), active transport does require energy.

Passive transport moves molecules WITH the concentration gradient (high to low), while active transport moves molecules AGAINST the concentration gradient (Low to High).

Similarities

They both allow the cell to maintain homeostasis by maintaining an equilibrium of subtances in and out of the cell.

They both involve moving material across or through the plasma membrane.