Definition check — osmosis: Identify what is incorrect in this statement. Statement under review: “Osmosis is the flow of <em>solution</em> from higher concentration to a solution of lower concentration through a semipermeable membrane.” Choose the option that best identifies the error(s).

Given data

• We must diagnose the error(s) in a proposed definition of osmosis.

Correct concept
Osmosis is the net movement of solvent molecules (usually water) across a semipermeable membrane from a region of lower solute concentration (higher water potential) to a region of higher solute concentration (lower water potential).

Why the statement is wrong
• It says solution flows; osmosis concerns the solvent (Error (a)).• It states flow from higher to lower concentration; correct direction is solvent from lower solute concentration → higher solute concentration (Error (b)).• The mention of a semipermeable membrane is appropriate, so (c) is false.

Common pitfalls

• Confusing “concentration” of solute with “water potential.”
• Thinking bulk solution moves; in osmosis, it is the solvent that diffuses.

Final Answer
Both errors (a) and (b) are present.