such a solution is hypotonic to the cells. When red blood cells are placed in pure water‚ water rapidly enters the cells by osmosis and causes the cells to burst‚ a phenomenon known as haemolysis. If the red blood cells are placed in a solution with a higher solute concentration‚ water moves out of the cell by osmosis. (8) **When the osmotic pressure of the solution outside the blood cells in higher than the osmotic pressure inside the red blood cells‚ the solution is hypertonic. When the solution
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concentration of the SDS increases from low to high. o Since NaCL cannot cross the Beta vulgaris membrane‚ water will move into the Beta vulgaris membrane at a low concentration of NaCL‚ making the solution hypotonic‚ then out of the membrane as the concentration of NaCL increases‚ making the solution hypertonic. (Sadava‚ Heller‚ Hillis‚ and Berenbaum 2011) Results Using the solutions of beta cyanin from Beta vulgaris and various concentrations of different alcohols‚ transferred from the spot plates to
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The results showed that the sucrose solution of 0.0M in the solution lacking AgNO3‚ showed the cells expanded‚ to the point of explosion from a hypotonic solution( Figure 1). Incipient plasmolysis occurred in the solution that contained AgNO3 in the sucrose concentration of 0.4M (Figure 2). In addition‚ the Elodea cells seemed to shrink as the sucrose concentrations’ increased without AgNO3. Therefore
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outside the cell‚ it will draw the water in its direction. This is also why you get thirsty after eating something salty. Type of Solutions ISOTONIC SOLUTIONS If the concentration of solute (salt) is equal on both sides‚ the water will move back in forth but it won’t have any result on the overall amount of water on either side. HYPOTONIC SOLUTIONS The word "HYPO" means less‚ in this case there are less solute (salt) molecules outside the cell‚ since salt sucks‚ water will move into
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of water molecules across a cell membrane. When osmosis results in water molecules entering a plant cell‚ the molecules exert a pressure against the cell wall‚ called turgor pressure. 3. hypertonic‚ plasmolysis : hypertonic solution has a higher solute concentration than the cytosol of a cell. In a hypertonic solution a plant cell will lose water and shrink away from the cell wall‚ a process called plasmolysis. MULTIPLE CHOICE 1. d 2. b 3. a 4. c 5. b SHORT ANSWER Answer the questions in
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original water sample? Show work! 4. (9) State whether each of the following samples are isotonic‚ hypotonic or hypertonic compared to red blood cells. Predict the effect on a red blood cell (crenation‚ hemolysis‚ or none) that the following solutions would have: Sample 2% glucose solution 2% NaCl solution Pure H2O Isotonic/hypotonic/hypertonic? Crenation/hemolysis/none? hypotonic hypertonic hypotonic hemolysis crenation hemolysis 5. (6) Describe how an artificial kidney separates waste products
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order to equalize the level of water in each region. Involved in this process are hypotonic‚ hypertonic and isotonic solutions. A hypotonic solution is one with a lower osmotic pressure‚ indicating that the net movement of water moves into the said solution whereas a hypertonic solution is one with a higher osmotic pressure‚ thus the net movement of water will be leaving the hypertonic solution. Lastly‚ an isotonic solution entails no net movement of water across a semi-permeable membrane as
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In part B‚ what caused the mass of the dialysis bags to change? Was there more or less water in the dialysis bags at the conclusion of the experiment? Explain. 5. Was the distilled water in the beakers hypertonic or hypotonic in relation to the sucrose solutions found in the dialysis bags? 6. Suppose the dialysis bags were placed in beakers containing a 0.6 M sucrose solution as opposed to distilled water. How do you think your results would change? Sketch
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recording their weight before and after each interval. The ladies hypothesized that if the eggs lost weight after being submerged‚ then the solution used to submerge the egg was hypertonic. If the egg gained weight‚ then the solution was hypotonic. If‚ by chance‚ the weight remained unchanged‚ then the solution would be isotonic. The
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concentration of solute between the cells and their environment (Kent 2000). Generally‚ there are three different conditions‚ when the solution is isotonic‚ hypertonic or hypotonic to the cell. In isotonic solution‚ when water potential inside and outside the cell is equal‚ both animal and plant cell behave in the same way: there is no net movement of water. In hypertonic solution‚ when water potential of the cell is higher than that of the solution‚ the water molecules will tend to move out of the cell. Hence
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