Terms Similarity Difference Active Transport/Passive Transport 4. Osmosis - hypertonic/hypotonic/isotonic Define the following: Term Definition Isotonic Hypertonic Hypotonic Concentration in center of box is the concentration inside the cell. Concentration elsewhere in box is the concentration outside the cell. Beaker 1 A. What is the % of water inside the cell? 90% glucose B. What is the % of water outside the cell? C. Will osmosis occur? 10% glucose D. If so, in what direction will osmosis occur? E. Will glucose diffuse? F. Will the cell shrink or swell? G. How do you know? H. This diagram shows the cell in a(n) (circle one) hypotonic / hypertonic / isotonic solution.

Terms Similarity Difference Active Transport/Passive Transport 4. Osmosis - hypertonic/hypotonic/isotonic Define the following: Term Definition Isotonic Hypertonic Hypotonic Concentration in center of box is the concentration inside the cell. Concentration elsewhere in box is the concentration outside the cell. Beaker 1 A. What is the % of water inside the cell? 90% glucose B. What is the % of water outside the cell? C. Will osmosis occur? 10% glucose D. If so, in what direction will osmosis occur? E. Will glucose diffuse? F. Will the cell shrink or swell? G. How do you know? H. This diagram shows the cell in a(n) (circle one) hypotonic / hypertonic / isotonic solution.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 6RE

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Type of Solutes Non-permeable Permeable Solution A 300 0 Solution B 295 20 Solution C 270 30 A cell with an internal osmolarity of 295 mOsm/L (non-permeable solutes) is placed in solution A. Solution A has an effective osmolarity that is ____________ compared to the cell; after water movement has reached a steady state, the cell volume will be ___________. A) hypertonic; decreased B) hypotonic; increased C) isotonic; decreased D) hypertonic; increased A cell with an internal osmolarity of 295 mOsm/L (non-permeable solutes) is placed in solution B. Solution B has an effective osmolarity that is ____________ compared to the cell; after water movement has reached a steady state, the cell volume will be ___________. A) hypotonic; decreased B) hypertonic; decreased C) hypotonic; increased D) isotonic; unchanged A cell with an internal osmolarity of 295 mOsm/L (non-permeable solutes) is placed in solution C. Solution C has an effective osmolarity that is ____________ compared…
Left Compartment Right Compartment 7 grams of Z per liter solution 4 grams of XY per liter of solution total volume = 1 liter. total volume = 1 liter Solute Z has a molecular weight of 20 (non-dissociable) Solute XY has a molecular weight of 10 (dissociates into X+ and Y-) 1. If the membrane is impermeable to all solutes, and there are 7 g/l of solute in the left compartment, what concentration of XY (g/l) in right compartment would make the solutions isotonic?
Information: Osmotic pressure is the pressure that a solvent exerts against a semipermeable membrane, such as a cell membrane. The higher the solute concentration, the lower the osmotic pressure. Red blood cells have an osmotic pressure equal to that of a 0.90% (m/v) solution of sodium chloride and 5.0% (m/v) solution of dextrose. A solution that has a higher concentration that this is called hypertonic; one with a lower concentration is called hypotonic. Osmotic pressure is an important factor affecting cells. Osmoregulation is the homeostasis mechanism of an organism to reach balance in osmotic pressure.Hypertonicity is the presence of a solution that causes cells to shrink.Hypotonicity is the presence of a solution that causes cells to swell.Isotonicity is the presence of a solution that produces no change in cell volume.When a biological cell is in a hypotonic environment, the cell interior accumulates water, water flows across the cell membrane into the cell, causing it to…
Determine the type of transport. Here are your options:Simple diffusion, facilitated diffusion, osmosis, primary activetransport, secondary active transport1. A hydrophobic molecule is moving through the membrane2. K+ moving against its gradient (low to high) through the sodiumpotassium pump3. Water moving through the cell membrane4. A solute moving down its gradient through a carrier protein
A blood cell with a 2% internal solute concentration is placed in a solution that has a 0.2% solute concentration. The solute is impermeable to the plasma membrane. How would you classify the solution compared to the cell – hypotonic, hypertonic or isotonic? Why? (2 pts.) B) Will the solutes move across the membrane? Why or why not? C) What type of transport would occur in this situation – diffusion, facilitated diffusion, osmosis, active transport or bulk transport. Explain. D) What would happen if the cell began to produce a new membrane protein that allowed the solutes to freely move in across the membrane? ould this change your answer to Part C? Explain.
41. A TRANSPORT MECHANISM ACROSS A MEMBRANE WHERE THE MOVEMENT OF THE SOLUTION IS FROM HIGHER TO LOWER CONCENTRATION UNTIL SUCH TIME THAT EQUILIBRIUM IS ESTABLISHED?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 42. BIOMOLECULES ARE HYDROLYZED FIRST INTO THEIR SIMPLEST FORM BEFORE THEY CAN BE ABSORBED BY THE TISSUES. GLUCOSE ABSORPTION IS THROUGH WHICH OF THE FOLLOWING?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 43. A TRANSPORT MECHANISM THROUGH MEMBRANE WHICH NEEDS ATP?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 44. TRANSPORT MECHANISM ACROSS MEMBRANE OF GASES?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 45. A TRANSPORT MECHANISM IN WHICH SMALLER PARTICLES PASSES THROUGH MEMBRANE BUT NOT THE BIG ONE?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS
Which is not required for passive transport across a membrane (select all that apply and explain why): a concentration gradient a cotransported ion energy a protein channel
Even under isotonic conditions, there is a slow leakage of ions into animal cells. How does the plasma-membrane Na+/K+ ATPase enable animal cells to avoid osmotic lysis under isotonic conditions?
In osmosis, water flows from hypertonic/hypotonic/isotonic solutions to hypertonic/hypotonic/isotonic solutions, until both solutions are hypertonic/hypotonic/isotonic.
Left Compartment Right Compartment 7 grams of Z per liter solution 4 grams of XY per liter of solution total volume = 1 liter total volume = 1 liter Solute Z has a molecular weight of 20 (non-dissociable) Solute XY has a molecular weight of 10 (dissociates into X+ and Y-) If X+ and Y- are ions, which are permeable through the membrane, and Z is not, what will happen and why?
Given the solute content of two solutions separated by a selectively permeable membrane predict which way water will flow across the membrane by osmosis? Thank you
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?