L4 3 Osmosis - Direction and Concentration Gradients.docx - EXPERIMENT 3 OSMOSIS \u2013 DIRECTION AND CONCENTRATION GRADIENTS Hypothesis I hypothesize that

L4 3 Osmosis - Direction and Concentration Gradients.docx -...

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EXPERIMENT 3: OSMOSIS – DIRECTION AND CONCENTRATION GRADIENTSHypothesisI hypothesize that the 30% and 15% sucrose tube in the 3% sucrose solution will gain volume while the 3% sucrose tubes will lose volume.Scientific ReasoningThe 30% and 15 % are high concentrations of sucrose in a low concentration therefore they will gain water to become isotonic.Data TablesTable 6: Sucrose Concentration vs. Tubing PermeabilityBandColorSucrose %Initial Volume(mL)Final Volume(mL)Net Displacement(mL)Yellow301013+3Red151011+1Blue310100Green3106-4©eScience Labs, 2016
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Post-Lab Questions1.For each dialysis bag, identify whether the solution inside was hypotonic, hypertonic, orisotonic in comparison to the beaker it was placed in.Yellow was hypotonic. Red was slightly hypotonic. Blue was isotonic. Green washypertonic2.Which dialysis bag increased the most in volume? Why?The yellow bag increased the most. It had the highest concentration of sucrose inin the bag so more water was trying to go in than was coming out.
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