Water Moves Across a Cell Membrane Through a Channel Protein

Multiple Choice

Water moves across a cell membrane through a channel protein, whereas glucose moves across a cell membrane via a carrier protein.Which statement provides a valid comparison of these two membrane transport systems?

A) Water transport occurs without the cell using energy, whereas glucose transport requires energy input by the cell.
B) Glucose moves in a direction from high to low concentration, while water moves in a direction that is not governed by differing solute concentrations.
C) A cell can add more sites for water transport to increase water movement across the membrane but cannot achieve the same result for glucose using a similar strategy.
D) Genetic mutations can alter glucose transport into a cell but cannot alter water transport.
E) Several water molecules move one after the other through the opening provided by a channel protein, while glucose is transported across the membrane via a carrier protein one molecule at a time.