• 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. Hypothesis...
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  • Cell Membrane Transport
    temperature affects rate of diffusion The higher the temp the quicker the diffusion Exercise 3: Tonicity and Diffusion Observations Data Table 4: Potato Dimensions. | Potato | Before Osmosis(L × W) cm | After Osmosis(L × W) cm | TonicityHypertonic, Isotonic, orHypotonic | Distilled...
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  • Cell Membrane Transport
    Cell Membrane Transport The purposes for these experiments is to be able to understand osmosis and its relationship to tonicity of solutions, and the transportation of molecules across cell membranes. It's also used to understand, and how temperature affects diffusion. You also learn how to test...
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  • Osmotic Pressure Report
    concentrations. The higher the concentration between the solutes, the higher the osmotic pressure. Osmotic pressure can be classified into three tonicities, which are Hypotonic, Isotonic and Hypertonic. Hypotonic is a situation when the concentration of water in cells are more than water outside the...
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  • Laboratory Experiments
    microscope salt soln. Ruler water potato Razon blade cover slip Procedure: 1. Exercise 3.1: Plasmolysis * Make a surface section of the lower...
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  • Bio 101
    Time: 1 hour (plus 2 hours preparation time)    Materials: Water, watch or timer, string, ice, hot water, paper towel,     ginger root, at least 2 other food sources (potato, apple, etc.)      The Cell:                      Lab 10:  Cell Structure & Function    Time: 1 hour (plus 24 hours for observation)  ...
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  • Lab Manual
    closed. Apparatus and Equipments: Binocular Microscope Cover slips Microscope slide Soft tissue papers (lens cleaner) Forcept Materials: Potato Onion Hair Iodine Safranin Observation of Onion Cells: The onion scale leaf has generally two major surfaces – an outer surface which...
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  • Political Science
    1 LabPaq provides 1 iTEM DESCRiPTioN Egg, fresh raw Onion, small Paper Towel Pencil Whisk or fork Sugar Sauce pan or deep skillet Potato, small white Vegetable oil White Vinegar following: Bent Probe, Dropping Pipet, Probe, blades are in the pocket, Scissors, Tweezers 1 1 ...
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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 the...
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  • Bio L
    (LM pages 41–56) Tenth Edition 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:...
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  • Smithsonian
    Osmosis Introduction Tonicity refers to the concentration of solutes in a solution (Lab 6-7). There are three stages of tonicity: Isotonic, hypertonic and hypotonic. Four unknown solutions were given and labeled as followed: Solution A, Solution B, Solution C, and Solution D. Since potato cells were used...
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  • Bio 103 Esiencelab1-7
    minutes Addi onal Materials Needed: Microscope Lab 4: Diffusion and Osmosis Approximate Time Required: 90 Minutes Addi onal Materials Needed: Water, potato, paper towel Lab 5: Tissues and Skin Approximate Time Required: 60-90 minutes Addi onal Materials Needed: Microscope 7 Time and Materials...
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  • Osmosis
    the amount of water moving from a low reign to a 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...
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  • BIO 107
    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 movement...
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  • Mid Term Lab Review
    cytoplasmic streaming, chromoplast, cell wall, plasma membrane, endoplasmic reticulum, Golgi apparatus, mitochondria, central vacuole Diffusion, tonicity, hypotonic, hypertonic, isotonic, potassium permanganate Lab 1: Know the purpose for the lab activities. Also know why science course include labs...
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  • Potato osmosis lab
    Dependent- Mass of Potato Control- Tap Water Materials: •Tap Water (50 ml for each cup) •Salt •Beaker •3 cups •3 pieces of potato •Scale Procedure: Step 1: Gather Materials. Step 2: Weigh each potato separately on the scale and record weight in grams on table. Step 3: Put each potato in a separate...
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  • Osmosis in Potatoes
    Potato Osmosis Introduction: A shipwrecked sailor is stranded on a small desert island with no fresh water to drink. They know they could last without food for up to a month, but if they didn't have water to drink they will be dead within a week. Hoping to postpone the inevitable, their thirst drives...
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  • i dont care
    of potato were cut from a single large potato (excluding the skin) -the sections were rinsed in distilled water,blotted dry and weighed -each potato section was placed in a seperate test tube -each test tube contained 10 mL of sucrose solutions at a different concentration -the potato sections...
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  • Diffusion and Osmosis
    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 beaker of water, it will move from its original...
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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 solution...
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