2. Best description of a semi-permeable membrane in the context of osmosis. A. A membrane that allows neither solute nor solvent particles to pass through it. B. A membrane that allows solute particles, but not solvent particles, to pass through it. 1. A membrane that aliows solvent particles, but not solute particles, to pass through it. 2. A membrane that allows both solute and solvent particles to pass through it.

2. Best description of a semi-permeable membrane in the context of osmosis. A. A membrane that allows neither solute nor solvent particles to pass through it. B. A membrane that allows solute particles, but not solvent particles, to pass through it. 1. A membrane that aliows solvent particles, but not solute particles, to pass through it. 2. A membrane that allows both solute and solvent particles to pass through it.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter5: Membranes And Transport

Section: Chapter Questions

Problem 8TYK

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Identify (state whether each item is an example of diffusion, osmosis, filtration, or active transport) 1. Movement of water from an area of lower impermeant solute concentration to an area of higher impermeant solute concentration. 2. Dye particles spread evenly through water. 3. Starch particles pass through a paper membrane. 4. A cell uses energy to "pump" sugar molecules from its external environment. 5. Water in cell moves out into a concentrated salt solution bathing the cell.
What among the following describes osmosis 1. The diffusion of water from an area low solute concentration to an area of high solute concentration. 2. Osmotic pressure is the force that allows water to move by osmosis through a selectively permeable membrane 3. When a cell is immersed in a hypertonic solution, water enters the cell by osmosis which causes it to swell and eventually burst. 4. A solution with greater concentration of water and low concentratioj of solute isbtermed as hyposmotic
II. The percentages of aqueous sugar solutions with different concentrations which are separated by a semipermeable membrane are given below. For each of the situations below, indicate the direction of the flow of water in osmosis. 2% sugar 5% sugar 9% sugar 20% sugar 1% 7% sugar 5% sugar 20% sugar sugar
Osmosis Practice Activity Osmosis is the diffusion of water from an area of high concentration to an area of low concentration. Only water moves in osmosis! The diagrams below show the concentration of water and salt inside the cell and the concentration of water and salt surrounding the cell. Complete the sentences below by comparing the concentration of the water inside the cell and the concentration outside the cell. 1. a. Water will flow the cell, out of the cell, in both directions). (into 5% NaCl 95% H20 95% NaCI 5% H20 b. The cell will (shrink, burst, stay the same). a. Water will flow (into the cell. 2. 5% NaCl out of the cell, in both directions). 5% NaCl 95% H20 95% H20 b. The cell will (shrink, burst, stay the same).
1. Define Osmosis. 2. Describe in detail, the similarities between osmosis and diffusion. Make sure you make a statement about each process. 3.As the solute concentration rises from 0% up to 100% of solute, what happens to the solvent concentration?
Explain the following practices based on what you learned about osmosis. make sure that your explanation are clear and concise
1. Define osmosis, simple diffusion, facilitated diffusion. 2.. Identify why each of these is a form of passive transport. 3. Give examples of each type of passive transport.
Table 4. 1.a Diffusion through a Semi-permeable Membrane. Observation Before Immersion After 15 minutes of Immersion Starch solution in the cellophane Iodine in the beaker Table 4.1.b Reaction of Starch to lodine Solution Starch in Iodine Solution Table 4.2. Osmosis Solutions Test Tube 1: 0.9% NaCl (Isotonic) Observe Shape of Red Blood Cells Drawing Test Tube 2: Distilled Water (Нурotonic) Test Tube 3: 3% NaCl (Hypertonic) Conclusion
8.Patients who enter the emergency room dehydrated are usually given sterile saline solution intravenously. The solution administered is isotonic to prevent cell damage. What would happen if the solution was hypotonic? Group of answer choices A. Hypotonic solutions have a higher osmotic pressure than that within cells so hemolysis can occur B. Hypotonic solutions have a lower osmotic pressure than that within cells so crenation can occur can occur. C. Hypotonic solutions have a lower osmotic pressure than that within cells so hemolysis can occur. D. Hypotonic solutions have the same osmotic pressure as that within cells so nothing will happen. 9.The solubility of CaCl2 in water is135g/100 ml. What would be the best method for preparing a 50.0 mL of supersaturated CaCl2 solution? Group of answer choices A. add 72 g of CaCl2 to 50.0 mL of H2O at 100 °C while stirring at room temperature B. add 67 g of CaCl2 to 50.0 mL of H2O at 100 °C while stirring at room temperature…
1. Water movement across a semipermeable membrane and between compartments with differing water activity will occur until acitviites of water in the two compartments become equal. TRUE OR FALSE 2. When there is a difference in water activity between two compartments seperated by a semipermeable membrane. There is net water movement from the compartment with the higher water activity to that with lower water activity TRUE OR FALSE 3. Osmosis requires an attractive force between water and the solute? TRUE OR FALSE
In the process of osmosis, the molecules of the solute travel from the solution with higher concentration (of solute) to the solution with lower concentration, when separated with a permeable membrane. Ⓒ True False
Key Term Matching 1. solute A. has a lower solute concentration 2. solvent B. makes up interior of lipid bilayer 3. hypertonic solution C. passive movement down concentration gradient 4. hypotonic solution D. only allows some substances to pass through 5. isotonic solution E. attached to outer face of plasma membrane 6. diffusion F. in living bodies, it is water 7. osmosis G. spans entire plasma membrane 8. selectively permeable H. a special case of diffusion 9. phospholipid head I. requires assistance to cross plasma membrane 10. fatty acid tail J. substance dissolved in water 11. cholesterol K. serves as an anchor for cytoskeleton 12. carbohydrate chain L. has a higher solute concentration 13. peripheral protein M. gives plasma membrane structural strength 14. transmembrane protein N. contains a phosphate group O. has an equal solute concentration 15. facilitated diffusion 111,111"