Lap Report Osmosis - Name Madison Durkee Group Members Lab...

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Name: Madison Durkee Section: 010 Group Members: Claire Reeves, Allison Dodd and Savannah Turner Lab Topic: Movement of Materials Into and Out of Cells: Osmosis INSTRUCTIONS: • Each group member must turn in a separate worksheet. The worksheets are not group work and should be written individually . • Type your responses inside the boxes using complete sentences . Please DO NOT delete the text inside or outside of the boxes. Check your grammar and spelling . I certify that the writing in this assignment is my individual work and is my intellectual property. It does not contain the ideas or writing of other individuals/authors. ________________________________ _________________________ Author Date Helpful hints : When explaining the biological significance, try to think “outside the box” of the lab. Why is the study important in a general way to science and society? The biological significance is often related to the key concepts we discuss in recitation. Helpful hints : Mention what variable you manipulated or tested and the response variable. HYPOTHESES: What are the null and alternative hypotheses? NULL hypothesis: There will be no difference in the mass of potatoes soaked in water (control) compared to the potatoes soaked in different sucrose concentrations (treatment). ALTERNATIVE hypothesis: There will be a difference in the mass of potatoes soaked in water (control) compared to the potatoes soaked in different sucrose concentrations (treatment). INTRODUCTION: What is the experimental question and general biological significance to science and society? The experimental question is, “ Will the potatoes exhibit a change in mass after  being soaked in various concentrations of sucrose solution ?” This is significant to science and society because it shows osmosis; which is the movement of water through a cell membrane. This is important for us to know because it allows us to tell if our cells are swelling, shirking, or remaining the same. A cell that swells is hypotonic, a cell that shrinks is hypertonic, and a cell that remains constant (no change) is isotonic. Being aware of this is important because if we weren’t our cells could become to big and burst, or our cells could shrink too much.
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Helpful hints : (1) Describe the key materials and methods used, the types of measurements, number of replicates, etc. (2) For experiments, describe the control and treatment groups, how they differed, and how many replicates were used for each. (3) Explain the response variable (what you measured and the units; the response variable is typically what you present in tables and figures).
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