Question

a student placed a semipermeable membrane inside a u - shaped channel with two chambers, as shown. the membrane permits the movement of water but not salt. the student wants to vary the rate of osmosis that occurs across the membrane. which of the following experimental designs will result in the fastest net rate of water movement into chamber a? a placing salt water in chamber a and distilled water in chamber b b placing distilled water in both chambers c placing distilled water in chamber a and salt water in chamber b d placing salt water in both chambers

Explanation:

Osmosis is the movement of water from an area of low - solute concentration to an area of high - solute concentration across a semi - permeable membrane. To get the fastest net rate of water movement into chamber A, we need the highest solute concentration in chamber A compared to the other chamber. Option A has salt water in chamber A (high solute) and distilled water in chamber B (low solute), creating the largest concentration gradient for water to move into chamber A.

Answer:

A. Placing salt water in chamber A and distilled water in chamber B