Question

Match the type of transport with the direction at which it facilitates the movement of two solute molecules.

• A. Same direction
• B. Opposite direction
• C. Independent movement

Answer 1

Symport proteins bind to two different molecules and transport them across the membrane in the same direction along the concentration gradient. Antiport transport proteins facilitate the movement of two different solute molecules in the opposite direction. One solute is exchanged for the other. Uniport transport system allows the movement of molecules towards the concentration gradient, across a membrane independent of other molecules.