Biology-Osmosis Prac Essay

Investigation of the affect of salinity on Osmosis within Solanum tuberosum | Year 10 Biology |

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TABLE OF CONTENTS

TABLE OF CONTENTS page number

1 DESIGN

1.1 Defining the problem 3-4 * Focus / research question * Hypothesis * Background information / theory * Investigation Variables
1.2 Controlling Variables 4 * Treatment of Controlled Variables * Control Experiment
1.3 Experimental Method 4 * Materials * Risk Assessment * Method * Experimental Setup * Modifications to Experiment 2 DATA COLLECTION and PROCESSING 5
2.1 Recording Raw Data 5 * Quantitative Data * Qualitative Data 2.2 Processing Raw Data 5 * Statistical Processing - calculations 2.3 Presenting Processed Data 5-6 * Result (s) table (s) * Graph (s)
3 CONCLUSION and EVALUATION 6-7
3.1 Conclusion * Conclusion statement * Conclusion explanation
3.2 Evaluation Procedures 7 * Reliability * Limitations / Weaknesses / errors in Laboratory Investigation * Significance of weaknesses on experimental results 3.3 Improving the Investigation 7 * Modifications to experiment
BIBLIOGRAPHY 8
APPENDIX A Risk Assessment and Laboratory Order Form
APPENDIX B Diagram set up
APPENDIX C Salt build up on the rim of measuring beakers

1. Design 2.1 Focus Question: What is the effect of different concentrations of salt solutions surrounding potato cells, Solanum tuberosum have on the osmosis of such cells.

Hypothesis: If a 1 cm cube of Solanum tuberosum is covered with a high 40% concentration of sodium solution then the mass of Solanum tuberosum will decrease due to osmosis. However, when covered with distilled