Cotransporters

Definition

Cotransporters are proteins in the cell membrane that move two or more molecules through the membrane in the same direction at once.

Related terms

Symporters: These are types of cotransporters where all molecules are transported in the same direction.

Antiporters: These are another type of cotransporter where different molecules are transported in opposite directions.

Passive Transport:

This is transportation along with the gradient without any need for energy input.