Topic: Osmosis Materials: Potato cylinders‚ 20 percent sodium chloride solution‚ three test-tubes‚ test-tube rack‚ scalpel blade‚ Gel ink pen‚ syringe-10cm^3‚ Plastic ruler with mm‚ tile‚ forceps filter paper‚ Masking tape. Method: 1) Three test-tubes‚ A‚ B and C were labeled and initials of experimenters were applied with the date: January 29‚ 2013. 2) A syringe was used to put 10cm^3 of water in tube A and 5cm^3 in tube B along with 5cm^ 20 percent sodium chloride solution and 10cm^3 20 percent
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Francis J.‚ Janzen‚ H. Henry Olson‚ Barry M. Olson‚ Andrew F. (2009) Erosion productivity soil amendment relationships for wheat over 16 years. Soil & Tillage Research. Vol. 103 Issue 1‚ p73-83. 4. Fiener‚ P.‚ Auerswald‚ K. (2007) Rotation Effects of Potato‚ Maize‚ and Winter Wheat on Soil Erosion by Water. Soil Science Society of America Journal. Vol. 71 Issue 6‚ p1919-1925. 5. Overman‚ Allen R.‚ Wilkinson‚ Stanley R. (2003) Extended logistic model of forage grass response to applied nitrogen as affected
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Name:_______________________ Date:___________ Period:______ Page:_______ Potato Diffusion Lab Hypothesis:________________________________________________________________________ __________________________________________________________________________________ Materials Aprons/Goggles Potato Slice (2-3cm thick) Potato Borer Triple beam balance 6 x 100mL beakers plastic wrap Paper towel 50mL Distilled Water 50mL 0.2M Sucrose solution 50mL 0.4M Sucrose solution 50mL 0.6M Sucrose
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Kevin Noperi Mrs Lowe English 575 23 October 2014 The Addiction Of Potato Chips Leaving my comfort zone was an experience that will made me feel uncormatble at first but then want me to get out of my comfort zone more. For example; I think conquering my addiction will be a good thing because that is one less thing to worry about in my life. But leaving my comfort zone is hard because I don’t like to change myself. Let’s see how my experience goes. Leaving my comfort zone experience is affected
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(Solute concentration) of a Potato? ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- Design ------------------------------------------------- ------------------------------------------------- 1. What is the dependent variable for this experiment? ------------------------------------------------- The dependent variable is the concentration (solute) of the potato. -------------------------------------------------
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different sucrose solutions. The following data was observed and collected throughout the experiment. Observations: -Qualitative: The potatoes were: Tubed shaped Yellow in color Initially hard in texture -Quantitative: Table 1: Weight of the potato in grams before and after placed in a different concentrations of sucrose solutions. Sucrose solution (M) Weight Before (g) ± 0.01 (A) Weight After (g) ± 0.01 (B) 0 4.56 4.31 0.2 4.22 4.28 0.4 4.13 4.08 0.6 4.57 4.45 0.8 4.60 4
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of osmosis of tap water of Solanum tuberosum L. Solanum tuberosum L.‚ also known as potato‚ was the selected plant to be tested because it was easy to measure the percentage change in mass due to the osmosis of water into the tissue. RESEARCH QUESTION How does the surface area to volume ratio of potato tissue (Solanum tuberosum L.) affect the rate of osmosis of tap water? HYPOTHESIS The smallest cube of potato (1x1x1)‚ having a higher surface area to volume ratio‚ will have the fastest rate of
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tubing lab and the potato lab. In the first experiment‚ the dialysis tubing acted as a semi-permeable membrane. A semi-permeable membrane is a membrane that allows certain substances to pass through. In this experiment‚ several variables‚ including glucose‚ starch‚ and iodine potassium iodide were tested for permeability through the dialysis tubing. In the second experiment‚ several potato tuber cylinders were tested in different sucrose solutions. The potato cylinders were tested
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substances in the cells of a potato using Osmosis. I predict that the potato in the higher concentration of salt solution will lose an increasingly high amount of weight. I think this because the higher the concentration in salt‚ the more water particles will move through the potato cell’s semi-permeable membranes to try and balance the salt concentration. For example‚ if you placed a larger piece of potato into a beaker of an almost 100% salt solution; the potato would completely shrivel up because
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UMUC Biology 102/103 Lab 3: Cell Structure and Function INSTRUCTIONS: On your own and without assistance‚ complete this Lab 3 Answer Form electronically and submit it via the Assignments Folder by the date listed on your Course Schedule (under Syllabus). To conduct your laboratory exercises‚ use the Laboratory Manual that is available in the WebTycho classroom (Reserved Reading or provided by your instructor) or at the eScience Labs Student Portal. Laboratory exercises on your CD may not be
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