Final answer:
The statement "When water diffuses across a membrane, it normally flows from a region of higher osmotic pressure to a lower osmotic pressure is False (Option B).
Step-by-step explanation:
Water moves across a semi-permeable membrane from an area of higher water concentration to an area of lower water concentration, not higher osmotic pressure to lower osmotic pressure.
Thus, the statement that water flows from a region of higher osmotic pressure to a lower osmotic pressure is false.
Osmosis is the movement of water through a semi-permeable membrane down its concentration gradient.
This means water moves from an area where it is more concentrated (and solutes are less concentrated) to an area where it is less concentrated (and solutes are more concentrated).
Hence, the correct answer is False (Option B).