molecules. The diffusion is a form of Brownian movement‚ or we can say The Brownian movement leads to diffusion in three different types‚ where the particles move from high concentration to low concentration area‚ which are hypotonic‚ hypertonic‚ and isotonic. 2- What was the role of the indicators (Lugol’s and Benedict’s solutions) used in the cell model experiment? Explain your answer using results you obtained from the cell model experiment. Lugol’s solution is a solution of elemental iodine and
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move in and out of the cell‚ but there is no net diffusion of water. Water will move in one direction or the other‚ and this is determined by the solute or solvents concentration 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 by conducting an experiment
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Physiology Ch 3 Types of Solutions.notebook October 22‚ 2013 Types of Solutions that Cells May Be Found In 1) Hypotonic Low [solutes] in ECF 2) Isotonic solution equilibrium 3) Hypertonic High [solutes] in ECF Oct 199:29 AM 1 Physiology Ch 3 Types of Solutions.notebook October 22‚ 2013 Hypotonic Low [solutes] in ECF In this situation‚ water wants to move from the ECF to the inside of the cell since there is a lower [H2O] inside than out. Particles
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data (attached) gathered from this lab‚ the approximate concentration at which the solution and potato cytoplasm is isotonic is 0.4 mol/L. I can therefore conclude that the approximate solute concentration of potato cytoplasm is also 0.4 mol/L. This is because the concentration of potato cytoplasm never changed throughout the experiment‚ but the sucrose solution did. Seeing as isotonic means both concentrations are equal‚ I can conclude that the potato cytoplasm was always around 0.4 mol/L. 3.
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Diffusion is when molecules move from an area of higher concentration to an area of higher concentration. The three types of concentrations are hypotonic‚ hypertonic‚ and isotonic. When in comparison to another solution‚ a hypertonic solution has a lower concentration‚ a hypertonic solution has a higher concentration‚ and an isotonic is when the two solutions have an equal concentration. The experiment tested the relationship between the concentration of an egg and solutions of different concentrations
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molecular level. 2. List several factors that influence the rate of diffusion. 3. Explain why diffusion is important to cells. 4. Describe a selectively permeable membrane‚ and explain its role in osmosis. 5. Define hypotonic‚ hypertonic‚ and isotonic in terms of relative concentrations of osmotically active substances. 6. Discuss the influence of the cell wall on osmotic behavior in cells. 7. Explain how incubation plant tissues in a series of dilutions of sucrose can give an approximate
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Pre-Med May Intake 2013 Group : E Date : 19.06.2013 Lecturer’s Name : Miss Nurul Izziani 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 experiment we use onion cells. Tissue from an onion is a good first exercise in using the microscope and viewing
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the body can be measured in pounds or dynes. A certain level of strength is also essential for a common man Strength can be divided into two parts: a ) Dynamic Strength (b) Static Strength. The methods of strength development are a) Isometric‚ b) Isotonic and c) Iso- kinetic exercises. Speed: Speed may be defined as the ability or capacity of the individual to perform a movement of the same pattern as faster rate. However different sports skills require different types of fast movement and quick
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concentrations. In this lab‚ we will determine the effects of hypertonic‚ isotonic and hypotonic solutions on plant and animal cells. In general when an animals cell’s placed in hypertonic solution it shrivels; a plant cell on the other hand undergoes plasmolysis. When an animal cell’s placed in hypotonic solution‚ it begins to swell and then finally lyse; a plant cell placed in this type of solution however‚ is said to be turgid. In isotonic solution‚ the animal cell stays the same (normal) whereas the plant
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the red blood cells will lyse‚ as a result of the water entering the cell via osmosis. First‚ a stock solution of NaCl was prepared at concentration 1.0M. Working solutions were made ranging from hypotonic to hypertonic with a negative control at isotonic solution (150mM). The solutions were diluted up to 4 mL into 5 test tubes‚ (0mM‚ 0.13mM‚ 0.15mM‚ 0.17mM‚ 0.3mM 0.5mM) using distilled water to dilute the stock solution. The working solutions were then added to 5 separate Eppendorf tubes at a volume
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