Predictions: Hypertonic Saline How you ranked the treatments: 1. Hypertonic Saline 2. Isotonic Saline 3. Hypotonic Saline You have chosen Hypertonic Saline. Predict the effects of your treatment on the following: Initial Value Decrease No Change Increase Blood Sodium Concentration 114 (Low) Brain Matrix Pressure 27 (High) Neuron Firing Rate 4.5 (High) Initial Value Into Vessel In Equilibrium Out of Vessel Net Free Water Movement Out of Vessel Justify your answer for net free water movement. Type your answer here
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When hypertonic saline is administered, it increases the concentration of sodium in the blood. This creates a gradient where water moves from an area of lower concentration (inside the cells) to an area of higher concentration (the blood), in an attempt to balance Show more…
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Organize the following statements as they apply to hypertonic, isotonic, or hypotonic solutions. Flushing human cells, which are 0.9% saline, with saline solution for storing contact lenses. When soaked in this type of solution, water molecules will leave the cell, via osmosis, causing it to shrink. When soaked in this type of solution, water molecules will enter the cell, via osmosis, causing it to swell. Immersing human cells, which are 0.9% saline, in freshwater, such as bath water. A solution with higher solute concentration than the cell. A solution with lower solute concentration than the cell. Solute concentrations in the cell and the surrounding solution are equal. Categories Hypotonic Solution Isotonic Solution Hypertonic Solution
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Determine the tonicity (hypo-, hyper- or isotonic) of the "cell" and the environment for each experiment below and predict the net movement of water and the solutes by circling the appropriate responses. Assume the "cell membrane" is permeable to all solutes. Hint: with the exception of NaCl, an ionic compound, all solutes are molecular compounds. Experiment #1 "Cell": 0.03 M sucrose, 0.02 M glucose Environment: 0.01 M sucrose, 0.01 M glucose, 0.01 M fructose "Cell": Hypotonic or Hypertonic or Isotonic? Environment: Hypotonic or Hypertonic or Isotonic? Net movement of water: Into "Cell" or Out of "Cell" or at Equilibrium? Net movement of solute: Fructose: Into Cell or Out of Cell? Sucrose: Into Cell or Out of Cell? Glucose: Into Cell or Out of Cell? Experiment #2 "Cell": 0.01 M sucrose Environment: 0.01 M ethanol "Cell": Hypotonic or Hypertonic or Isotonic? Environment: Hypotonic or Hypertonic or Isotonic? Net movement of water: Into "Cell" or Out of "Cell" or at Equilibrium? Net movement of solute: Sucrose: Into Cell or Out of Cell? Ethanol: Into Cell or Out of Cell? Experiment #3 "Cell": 0.01 M sucrose Environment: 0.01 M NaCl "Cell": Hypotonic or Hypertonic or Isotonic? Environment: Hypotonic or Hypertonic or Isotonic? Net movement of water: Into "Cell" or Out of "Cell" or at Equilibrium? Net movement of solute: Sucrose: Into Cell or Out of Cell? NaCl: Into Cell or Out of Cell?
Adi S.
Learning Goal: To learn about osmosis and about isotonic solutions, hypertonic solutions, and hypotonic solutions. Osmosis is the net movement of water across a semipermeable membrane from an area of lower concentration to an area of higher concentration. Part A: A semipermeable membrane is placed between the following solutions. Which solution will decrease in volume? Solution A: 1.81% (m) starch The water will continue to move across the semipermeable membrane as the system attempts to reach equilibrium, where both solutions have the same concentration. Solution B: 6.89% (m/v) starch There are three different ways a solution can be described in relation to a cell placed in the solution: isotonic, hypotonic, and hypertonic. Compared to the cell, an isotonic solution exerts the same osmotic pressure as the cellular fluids. In other words, it... Part B: A semipermeable membrane is placed between the following solutions. Which solution will increase in volume? Solution C: 7.40% NaCl Solution D: 14.6% NaCl Part C: A red blood cell has been placed into each of three different solutions. One solution is isotonic to the cell, one is hypotonic to the cell, and one solution is hypertonic to the cell. Sort each beaker into the appropriate bin based on the cell's reaction in each solution:
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