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Table 1.
Descriptive questions about osmosis.
Question (Q)Laboratory set-upObservation (O)
Q1. What is the effect of sucrose concentration on the height of water rise in the straw?  O1. Solutions of different concentrations separated by dialysis tubing produces pressure, as evidenced by the solution rise in the straw. 
Q2. What happens when iodine solution, placed in dialysis tubing with each end tied off, is put in starch solution?  O2. Dialysis tubing is selectively permeable to some molecules, as evidenced by the starch indicator of iodine. 
Q3. What happens to cells placed in salt water?  O3. Salt water increases and fresh water reduces osmotic pressure, as evidenced by the change in the vacuole. 
Question (Q)Laboratory set-upObservation (O)
Q1. What is the effect of sucrose concentration on the height of water rise in the straw?  O1. Solutions of different concentrations separated by dialysis tubing produces pressure, as evidenced by the solution rise in the straw. 
Q2. What happens when iodine solution, placed in dialysis tubing with each end tied off, is put in starch solution?  O2. Dialysis tubing is selectively permeable to some molecules, as evidenced by the starch indicator of iodine. 
Q3. What happens to cells placed in salt water?  O3. Salt water increases and fresh water reduces osmotic pressure, as evidenced by the change in the vacuole. 
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