Active transport of ions by the cell requires

State the characteristics of facilitated diffusion.

In .......... both molecules cross the membrane in the same direction.

What is active transport?

$A-$ The symplastic system is the system of interconnected protoplasts.
$R-$ The apoplast is the system of adjacent cell walls that is continuous throughout the plant root,except at the Casparian strips of the endodermis in the roots.

Describe the role played by protein pumps during active transport in plants.