Question

select the true statement regarding osmosis. osmosis across a membrane requires that the membrane be fairly impermeable to solute particles. in osmosis, water movement can only occur through channel proteins called aquaporins. in osmosis, the net direction of water movement is from an area of lower water concentration to an area of higher water concentration. in osmosis, the net direction of water movement is from an area of higher solute concentration to an area of lower solute concentration. i dont know yet

Explanation:

• Analyze each option:
• Option 1: Osmosis requires a selectively permeable membrane, which is fairly impermeable to solute particles (so solvent can move based on solute concentration differences). This is correct.
• Option 2: Water can move through the lipid bilayer too, not just aquaporins. So this is wrong.
• Option 3: Water moves from higher water concentration (lower solute) to lower water concentration (higher solute), not the other way. Wrong.
• Option 4: Water moves from lower solute concentration to higher solute concentration (since that's lower water to higher water? No, wait—osmosis is water moving to area of higher solute concentration (to dilute it), so net movement is from lower solute (higher water) to higher solute (lower water). So this option's direction is wrong.

Answer:

Osmosis across a membrane requires that the membrane be fairly impermeable to solute particles.