Cellular Biology



A laboratory assistant prepared solutions of 0.8 M, 0.6 M, 0.4 M, and 0.2 M sucrose,

but forgot to label them. After realizing the error, the assistant randomly labeled the

flasks containing these four unknown solutions as flask A, flask B, flask C, and flask D.


Design an experiment, based on the principles of diffusion and osmosis, that the assistant could use to determine which of the flasks contains each of the four unknown solutions.

Include in your answer (a) a description of how you would set up and perform the

experiment; (b) the results you would expect from your experiment; and (c) an

explanation of those results based on the principles involved. (Be sure to clearly

state the principles addressed in your discussion.)