In passive transport, no is spent to pass a substance across a membrane.

True or false? Active transport can only take place across a membrane.

Passive transport operates independently of the concentrations of the moving solute.Group of answer choicesTrueFalse

Passive transport permits the solute to move only into the cell, not out of the cell.Group of answer choicesFalseTrueNext

Select a true statement about active transportIt takes place in both directionsIt occurs without the help of carrier proteinsIt allows all transmissible molecules to pass through membraneNone of the above

Unlike passive transport mechanisms, active transport requires the input of cellular .