3. Draw and label a diagram that demonstrates the difference between tonicity and osmolarity. Be sure to label the new solutions in each condition, draw the changes (if predicted) in cell shape/volume, and clearly use arrows to indicate the movement of water relative to the cell. Please start with a red blood cell in an isotonic solution (Figure D) and show what happens to cell shape and water movement when NaCl (remember that the membrane is permeable to neither of these ions) (Figure E) or urea (a permeable ion) (Figure F).

3. Draw and label a diagram that demonstrates the difference between tonicity and osmolarity. Be sure to label the new solutions in each condition, draw the changes (if predicted) in cell shape/volume, and clearly use arrows to indicate the movement of water relative to the cell. Please start with a red blood cell in an isotonic solution (Figure D) and show what happens to cell shape and water movement when NaCl (remember that the membrane is permeable to neither of these ions) (Figure E) or urea (a permeable ion) (Figure F).

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

Chapter38: Introduction To Animal Organization And Physiology

Section: Chapter Questions

Problem 9TYK

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1) a) Draw arrows to indicate which direction Na+ vs K+ions will tend to move.(into vsout of the cell) b) What prevents these solutes from diffusing across the membrane at a significant rate? c)If the solutes were unable to move across the membrane, would the cell be considered hypertonic, hypotonic or isotonic? d) If the solutes were unable to move across the membrane, which way would water move?(inside the cell, outside the cell or no net movement) e) How did the cell establish the differential in the shown ion concentrations in the first place?
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
given the perfect osmometer (plasma membrane bounded by perfectly rigid walls) inside the cell, the solute potential is 0 and the pressure potential is 0, outside the cell the water potential is also 0 you add a dilute salt solution that changes the osmotic potential of the solution to 0.3MPa 1. what is the approximate value of the solute potential and pressure potential inside the cell after the system has come to equilibrium? 2. why does the movement of relatively few water molecules across the plasma membrane of the osmometer have such a large effect in the value of pressure potential?
1.) Define the following types of solutions and give its effect to cells:a. Hypertonic –b. Hypotonic -c. Isotonic - 2.) What are the most important extracellular and intracellular fluid ions and give the significance of each?
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1. In a passive process (passive transport) across a cell's plasma membrane, ______ differences drive the movement; while in an active process, the cell provides ______ to power the transport process. A. concentration, ATP B. ATP, concentration C. differential permeability , driving force D. driving force, differential permeability
Create a diagram that demonstrates the difference between tonicity and osmolarity. Be sure to label the new solutions in each condition, draw the changes (if predicted) in cell shape/volume, and use arrows to show the movement of water relative to the cell. Please start with a red blood cell in an isosmotic solution and show what happens to cell shape and water movement when NaCl is added to the solution, or when water is added.
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9)Two solutions are separated by a selectively permeable membrane that is not permeable to glucose. On one side of the membrane, solution A contains 10 percent glucose and on the other side, solution B contains 25 percent glucose. Which of the following is true? Select one: a. Solution A is hypertonic. b. The solutions are isotonic. c. Water would move from solution A to solution B. d. Glucose would move from solution B to solution A.