• Potato Lab
    Potato Lab Background information: A hypertonic solution is a concentration that is higher than the solution. A Hypotonic solution is a concentration that is lower than the solution. An isotonic solution is a concentration and solution that is the same amount. Hypothesis question: What will happen...
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  • Bio Lab
    (Osmolarity: The Test).Hypertonic, hypotonic and isotonic are three terms used when referring to two solutions separated by a selectively permeable membrane (Morgan & Carter 2011). Hypertonic has a greater concentration of solutes that cannot cross the membranes. Hypertonic has a low concentration...
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  • Bio. Lab. Report - Membrane Transport
    Objectives: To study the effects of hypotonic, hypertonic and isotonic solutions on plant and animal cells. Materials and Apparatus: * Microscope * Electronic balance * Stirring rod * Small knife * Glass slide and cover * 250, 500 ml beakers * Distilled water * Cotton ...
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  • Smithsonian
    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 for this type of experiment, in an Isotonic solution the solute and water concentration...
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  • Osmosis
    gain or loss in animal and plant cells. INTRODUCTION: Osmosis is the tendency of water to flow from a hypotonic solution (low concertration of dissolved substances) to hypertonic solution ( higher concerntration of dissolved substances) across a semipermeable membrane. Osmosis occurs...
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  • Transport Across Membrane
    Matrix No : Group : B Semester : 1 Date of Experiment : 05.09.2013 Lecturer’s Name : Miss OBJECTIVE To study the effects of hypotonic, hypertonic and isotonic solutions on plant and animal cells. INTRODUCTION In cellular biology the term membrane transport refers to the collection of mechanisms...
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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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  • Osmosis/ Potato Lab Ap Bio
    solution is hypotonic, and water will move from the solution into the cell. If the surrounding solution has a higher concentration of dissolved molecules than the cell, the solution is hypertonic. In that case, water will move from the cell out into the surrounding solution. An isotonic solution is when...
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  • Diffusion and Osmosis
    molar solutions and the different osmotic behaviors within the cells. In experiment 5.3 we test the osmolarity of plant cells through the usage of potato tuber cells. In experiment 5.1 in order to observe diffusion we examine the Brownian movement by observing carmine on a wet mount slide, and by using...
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  • Osmosis
    water across a cell membrane. So if a cell finds itself in an environment where there are a lot of dissolved particles outside compared to inside (a hypertonic environment), water will begin to flow from an area of high concentration inside the cell to an area of low concentration outside the cell. The...
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  • Osmosis and Diffusion Lab Report Introduction All Cells Contain Membranes That Are Selectively Permeable, Allowing Certain Things to Pass Into and Leave Out of the Cell. the Process in Which Molecules of a Substance
    inside of the cell, this is called a hypotonic solution. In hypotonic solutions, when water moves into the cell they burst, which is known as lysis. A hypertonic solution is when the concentration of outside the cell is higher than the inside of the cell. In hypertonic solutions, water moves out of the...
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  • BIOL 1208 Writing Assessment 2
    Exercise 1 – Potato Change in Mass versus Sucrose Concentrations Introduction: This exercise involves estimating the osmotic concentration of potato tuber cells by using a change in mass method. The null hypothesis states that there will be no change of mass of the potato disks after they have been...
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  • Lab Report Tansport Across Membrane
    Objectives : I. To study the effects of hypotonic, hypertonic, and isotonic solutions on plant and animal cells. Experiment 1 : Introduction : The purpose of doing this experiment is to investigate the effects of hypotonic, hypertonic, and isotonic solutions on plant cell. Particularly in this...
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  • Diffusion
    maintain normal. This is described as isotonic. Osmosis does not occur in an isotonic solution. A hypotonic solution is a solution in which the concentration of dissolved substances is lower than the concentration inside the cell. If a cell was put in a hypotonic solution, osmosis will cause water to...
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  • Osmosis Potato Lab Report Biology 4u
    levels. If the two solutions are of equal concentrations, they will be isotonic. If the concentrations are unequal, the solution with the higher concentration is hypertonic, and the solution with the lower concentration is hypotonic. What is the solute concentration of potatoes? We can determine this...
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  • Osmosis Lab
    their solution. We then placed the eggs(animal cells), carrots, and potatoes(plant cells) into their solutions and let them stand in their hypotonic and hypertonic solutions overnight followed by observing any changes in weight and appearance the next day. In Part B, we observed an onion cell exposed...
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  • Diffusion on a Liquid in a Liquid
    different outcome in the experiment if the water was moving around opposed to sitting still. Part B: The Effect of Salt Concentration on Osmosis in Potato Cells. Introduction: 1. The purpose of doing this lab was to recognize the effects that salt, in different strengths, has on cells...
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  • Osmoregulation
    Abstract: When a plant is placed in a hypertonic solution, the environment is more concentrated then that of the cell’s internal environment, the cell will lose water, shrinking and becoming flaccid a process called plasmolysis. When a plant is placed in a hypotonic solution, the cell’s internal environment...
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  • final
    Abstract The experiment was carried out to investigate at which point the potato has reached its isotonic environment. From the results, when the concentration increase to 0.3M, the mass of the potato slices decreased by -3.26%. We can conclude we see that as we increased the sucrose concentration...
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  • 2.03 Cell Membranes and Homeostasis
    with starch creates a dark color and that most objects, organic and inorganic, naturally experience isotonic reactions. Hypothesis: I think that the potato will absorb more starch than the sweet potato and they will both absorb relatively similar amounts of water. Procedure: Variables: Controlled-...
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