hitting the red button, add 20 solutes (green) to the inside of the cell and add 5 water (blue) to the inside of the cell. Also, add 20 water (blue) to the outside of the cell and 5 solutes (green) to the outside of the cell. Add blue gated channels to the membrane. Q: What happens to the water molecules in this situation? Q: Which of the above situations is closer to a living membrane system?

hitting the red button, add 20 solutes (green) to the inside of the cell and add 5 water (blue) to the inside of the cell. Also, add 20 water (blue) to the outside of the cell and 5 solutes (green) to the outside of the cell. Add blue gated channels to the membrane. Q: What happens to the water molecules in this situation? Q: Which of the above situations is closer to a living membrane system?

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

See similar textbooks

Similar questions

What is the effect of suspending the cells in hypotonic and isotonic environment? explain in 1-3 sentences
In the figure below are several panels that illustrate the relative concentration of a particular solute on either side of a cell's plasma membrane. The top panel represents the INITIAL (or starting) scenario, and the lower panels represent different possible outcomes after time has passed. QUESTION: Which of the panels below represents a situation in which the concentration gradient of this solute has been minimized (reduced)? A B C D
Some antibiotics act as carriers that bind an ion on one side of a membrane, diffuse through the membrane, and release the ion on the other side. The graph shows the conductance of a lipid-bilayer membrane with a carrier antibiotic as a function of temperature. Conductance 40 39 38 Temperature (°C) 37 36 What can you conclude about the effect of a carrier antibiotic on the conductance of the lipid-bilayer membrane? A carrier antibiotic decreases the conductance of a lipid bilayer, regardless of temperature. A carrier antibiotic can shuttle ions across a membrane only when the lipid bilayer is quite rigid. A carrier antibiotic increases the conductance of a lipid bilayer, regardless of temperature. O A carrier antibiotic can shuttle ions across a membrane only when the lipid bilayer is highly fluid.
In the experiment showing osmosis through a semipermeable membrane, 3 corn syrup mixtures are used. If equal volumes of two solutions (10% corn syrup and 30% corn syrup) were placed in two beakers that were separated by a semipermeable membrane, permeable only to water, and let sit for 1 hour, what would be the expected concentration/s of the two solutions at the end of the time period? Explain using solute concentration, water concentration etc.
The following are the characteristics of the setup depicted below: The left side has a higher concentration of "yellow spheres" than the right side. The blue solution is water, and the yellow spheres dissolve in water (i.e. are osmoles). The dotted orange line is a semi-permeable membrane with characteristics exactly the same as a cell's plasma membrane. Below are TWO "If" statements that are separate questions. IF the yellow spheres are freely permeable across the dotted line, the process of [ Select ] ["facilitated diffusion", "active transport", "simple diffusion", "osmosis"] will occur. Consequently, the volume of water on the left side will [ Select ] ["stay the same", "decrease", "increase"] IF the yellow spheres cannot cross the membrane at all, the process of [ Select ] ["osmosis", "facilitated…
The solutions in the two arms of the U-tube are separated by a membrane that is permeable to water and glucose but not to sucrose. Side A is filled with a solution of 2.0 M sucrose and 1.0 M glucose. Side B is filled with 1.0 M sucrose and 2.0 M glucose. Initially, the solution in side A, with respect to that in side B, is what? After the system reaches equilibrium, what changes are observed?
In which direction will WATER molecules (the small blue spheres) move across the membrane in the illustration shown here? A *B: Water will move from A to B Water will move from B to A
The beaker is divided into two compartments (C and D) that has equal volumes of solution separated by an artificial membrane that has a pore size of 23 Å (Angstrom). Explain the movement of solute after eight hours if comparment C has 17 % sucrose while the compartment D has 2 % sucrose (diameter of sucrose molecule = 9 Å (Angstrom))
;, Consider a spherical cell at body temperature (37°C) that is 10 µm in radius. The concentration of ions inside and outside the cell are given below. Sodium and potassium are the only permeant ions, and the membrane contains proteins that pump in 3 sodium ions for every 2 potassium ions pumped out. [Na*] = ? [K*] = 119mM [Ci] = 8mM [A] = 121mM [Na*] = 120mM [K*] = ? [Cr] = 125MM [glu] = ? (a) Suppose the cell is in osmotic equilibrium, find the 3 unknown concentrations. (b) Suppose the membrane conductance to sodium is 5% that to potassium, find the resting membrane potential via circuit analysis. (c) What would the resting potential be if the membrane were instead permeable only to chloride ions? (d) Suppose the cell was suddenly placed in distilled water, what would happen to it? And, how much external pressure (positive or negative) would be needed to prevent this from happening?
Cells are placed in a beaker of water. The concentration of glucose outside of the cells is 3 mg/ml. The concentration of glucose inside of the cells is 33 mg/ml. Assuming glucose is the only solute, in which direction will osmosis occur? *
Soft contact lenses are made from hydrogels, which make them soft and flexible. It is important to clean them daily using a sterile, isotonic cleaning solution. The concentration of solutes in the cleaning solution is the same as the concentration of the hydrogel in the contact lens. What would happen if instead of an isotonic cleaning solution, soft contact lenses are cleaned with water? (A) The soft contact lenses will shrink because it will remove too much water by osmosis. B The soft contact lenses will shrink because too much water is absorbed by osmosis. The soft contact lenses will swell and change shape because too much water is absorbed by osmosis. The soft contact lenses will swell and change shape because too much water is removed by osmosis.
Which of the following best describes a hypotonic solution? a-There is a higher concentration of solute outside the cell than inside the cell b-There is a lower concentration of solute outside the cell than inside the cell c-The solute concentration both inside and outside the cell is equal d-Through osmosis, water will enter the cell causing it to swell