• Osmosis
    OSMOSIS and TONICITY IN POTATO STRIPS The purpose of this experiment was to make observations and conclusions about the ability of cells to adjust to varying chemical concentrations in the environment and to observe the effect of isotonic, hypotonic and hypertonic solutions on cells...
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  • Cell Membrane Transport
    crisp? #1 (salt & distilled water) was crisp #2 (10% sodium choloride was limp B. How would you explain the difference in the conditions of the potato strips using the concept of tonicity? Limp = water has left the potato (hypertonic) rigid= water has entered the potato (hypotonic) C...
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  • Cell Membrane Transport
    water, grew a little bit and was crispy, which means it soaked up water. The sodium chloride got a little smaller, and was limp which means it is hypertonic. The second question is How would you explain the difference in the conditions of the potato strips using the concept of tonicity? One of...
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  • Osmotic Pressure Report
    . AIMS The aim of this experiment was to determine the osmotic pressure of the potato strips. The relationship between molarity of sucrose solution and the mass of the potato strips was also considered an aim for be figured out in this experiment. . HYPOTHESIS The higher the concentration of...
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  • Laboratory Experiments
    solution, sketch one cell and label the cell wall, cell membrane, chloroplast and cytoplasm * Completely dissolve 10ml of table salt in 25ml water. Place the salt solution in one of two saucers and fill the other saucer and label them properly. * Slice the potato lengthwise into 1cm strips. Put...
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  • Bio 101
     well. Fill in the types of potato used in this experiment in the  “Type of Potato” column of Table 3.  2.  Carefully cut two strips of each type of potato on a cutting board. The strips should be as close  to 10cm long and 1cm wide as you can cut them so they fit into the test tube.    Note: In the...
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  • Lab Manual
    changes in the concentration of sucrose solution and in the length of potato strips. Introduction: Water potential, ( • The tendency of water molecules to diffuse across a membrane is affected by: • the concentration of the solution on either side of the membrane • the resultant pressure...
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  • Political Science
    Tonicity (l × W) cm Hypotonic 10% Sodium Chloride 10. Place one potato strip into each test tube. Immerse the strips completely in the liquids. Note: 11. Place both test tubes into a test tube rack. Allow the test tubes to sit for approximately 1 hour. www.HOLscience.com 83 ©Hands-On Labs...
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  • Bio L
    Changes Sex pilus has been changed to conjugation pilus, as in the text. Tonicity section has been reorganized to place Experimental Procedure: Potato Strips after Experimental Procedure: Elodea Cells for better flow (p. 50). Instructions for Experimental Procedure: pH and Cells has been rewritten and...
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  • Biology
    Determining the Tonicity of Unknown Solutions to a Potato Introduction TONICITY- Contraction of resting or relaxed muscles. The osmotic pressure or tension of a solution, as in the cells would swell or shrink depending on the tonicity of the environment. A property of a solution that depends on...
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  • Smithsonian
    contains 0.2% NaCl. Hypothesis My first hypothesis for this tonicity experiment was if a piece of potato is immersed or put into the hypertonic solution A, then the solute concentration will be greater and water concentration will be less outside of the cell, which will cause the piece of potato...
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  • Bio 103 Esiencelab1-7
    caused by osmosis. By taking advantage of this system, you will be able to look at the effects of tonicity in a biological system. Materials 20% Sodium Chloride (NaCl) solu on Potato* 2 Test tubes 100 ml Graduated cylinder Water* 2 Pipe es Knife for cu ng* Ruler Paper towel* Stopwatch Permanent...
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  • Osmosis
    higher reign effects the mass of the potato. Pieces of potato will be put into different concentrations of sugar (sucrose) solution; this will show me whether the potato loses or gains weight in different concentrations Background Information OSMOSIS Osmosis is a “Special kind of diffusion...
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  • Mid Term Lab Review
    through a membrane. 3. Was the membrane we used permeable to iodine? glucose? starch? How did we determine this selective permeability? What cell properties was it based upon? 4. How was tonicity demonstrated in lab? (two ways) 5. Why were the potato cubes weighed? Tonicity is a comparison, the...
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  • BIO 107
    at 0.5M, 0.1M, and 0.05M. We also placed a 6g and 10g potato piece in water to act as a control. Based on the weight percent change over 60 minutes, the 6g potato piece had faster water movement than the 10g. This confirms out hypothesis that smaller potato pieces will have a faster rate of water...
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  • Potato osmosis lab
    Research Question: Which salt solution caused the sailor to die? Hypothesis: If the sailor drank the 40% salt water solution, then would die sooner, because the high amount of salt causes more dehydration. Variables: Independent- Salt Solution Dependent- Mass of Potato Control- Tap Water...
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  • Diffusion and Osmosis
    dropped in a beaker of water. (2, 3) Sugar molecules start to diffuse randomly down their concentration gradient. (4) Eventually, equilibrium is achieved, and the solution is homogenous. Tonicity is a term expresses the relative concentrations between solutions. If a drop of ink was added to a...
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  • Osmosis in Potatoes
    : Results of Osmosis in Potato Cells Solution Initial length cm (day1) Final length cm (day2) Change in length cm Initial Mass g (day1) Final Mass g (day2) Change in mass g Initial Turgidity (flaccid or crisp) Final Turgidity (flaccid or crisp) Tonicity of Solution (iso-, hypo-, or hpertonic...
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  • i dont care
    +7% +1.2 +12% +1.73 +17% +2.16 +21% AFTER i found those i was given some questions which i cannot figure out so this is the reason why i am emailing you #1) in terms of tonicity, why are some potato sections...
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  • Osmosis Lab Repoort
    Purpose: To see the effects of tonicity’s on potato cells. Background: Osmosis is the diffusion of water across a differentially permeable membrane due to concentration differences. Tonicity is the concentration of solutes. The potato cell has 3% of dissolved materials. Hypertonic is when the...
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