I need the answer as soon as possible Which of the following best explains why theplasma membranes of all cells exhibit a negativeresting potential?(A) The membrane is mostly permeable to Cl",and the Cl gradient favors its diffusionout of the cell.(B) The membrane is mostly permeable to K*,and the Kt gradient favors its diffusion intothe cell.(C) The membrane is mostly permeable to K*,and the K* gradient favors its diffusion outof the cell.(D) The membrane is mostly permeable to Na*,and the Na* gradient favors its diffusioninto the cell.(E) The membrane is mostly permeable to Na*,and the Nat gradient favors its diffusionout of the cell.

A resting cell has a voltage across its membrane known as resting membrane potential. This resting…

Answered: Which of the following best explains…

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 5UC

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Solution A is hyperosmotic to solution B. If solution A is separatedfrom solution B by a selectively permeable membrane, does watermove from solution A into solution B, or vice versa? Explain
A solution of water and dissolved ions is separated by a selectively permeable membrane that allows the passage of water but not small ions. The concentration of sodium is higher on one side of the membrane than onthe other side. However, there is no net movement of water across the membrane. How is this possible?
What is the difference between a semi-permeable mem- brane and a selectively permeable membrane? What does the semi permeable and selectively permeable let pass through?
What effect does increasing extracellular K' have on the net diffusion of K' out of the cell?
Given that extracellular matrixmolecules have the ability to presentordered arrays of signals to cells,might the exact spatial relationshipsbetween such signals carry a messagebeyond that of the individual signalsthemselves?
What we know about diffusion states that the concentration of ions inside and outside a cell should be thesame, but in a neuron, the concentrations of sodium and potassium ions are quite different. How does the cell go against the forces of diffusion?
When the membrane is at rest, what are the forces acting on sodium ions?A. Both the concentration gradient and the electrical gradient tend to move sodium ions into the cell.B. Both the concentration gradient and the electrical gradient tend to move sodium ions out of the cell.C. The concentration gradient tends to move sodium ions into the cell, and the electrical gradient tends to move them out of the cell.D. The concentration gradient tends to move sodium ions out of the cell, and the electrical gradient tends to move them into the cell.
When the membrane is at rest, what are the forces acting on potassium ions?A. Both the concentration gradient and the electrical gradient tend to move potassium ions into the cell.B. Both the concentration gradient and the electrical gradient tend to move potassium ions out of the cell.C. The concentration gradient tends to move potassium ions into the cell, and the electrical gradient tends to move them out of the cell.D. The concentration gradient tends to move potassium ions out of the cell, and the electrical gradient tends to move them into the cell.
Vacuoles are fluid-filled organellespresent in some cells.Which function isNOT normally performed by vacuoles?
• Describe the three main types of cell-cell adhesion. • Explain unassisted membrane transport and protein assisted membrane transport. • What is osmosis? Osmotic pressure? Tonicity?
If you made a hematocrit in two tubes. Tube A is made of 0.60M NaCl, and Tube B is made of 1.00M of NaCl, describe how the cell would respond in these solutions? Which would have a higher rate of osmosis? If the cell is permeable to NaCl, which would have a higher rate of diffusion?
Explain the Donnan Membrane Phenomenon. Why is it important for the homeostasis of the cell?

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