Na Higher concentration Lower concentration Na ATP 'protein pump K* Lower concentration Higher concentration (i) When sodium and potassium ions move cross the membrane using the Na*/K* pump, they are using which type of cell membrane transport? ( (ii) In your own words, describe the process by which sodium ions cross the membrane using the Na*/K* pump. Incorporate into your answer all of the following terms; higher concentration, lower concentration, ATP, concentration gradient, Na /K* pump. (iii) In your own words, describe the process by which potassium ions cross the membrane using the Na*/K* pump. Incorporate into your answer all of the following terms; higher concentration, lower concentration, ATP, concentration gradient. Na /K pump

Na Higher concentration Lower concentration Na ATP 'protein pump K* Lower concentration Higher concentration (i) When sodium and potassium ions move cross the membrane using the Na/K pump, they are using which type of cell membrane transport? ( (ii) In your own words, describe the process by which sodium ions cross the membrane using the Na/K pump. Incorporate into your answer all of the following terms; higher concentration, lower concentration, ATP, concentration gradient, Na /K* pump. (iii) In your own words, describe the process by which potassium ions cross the membrane using the Na/K pump. Incorporate into your answer all of the following terms; higher concentration, lower concentration, ATP, concentration gradient. Na /K pump

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 2TAHL: Assume that a membrane permeable to Na+ but not to Cl- separates two solutions. The concentration of...

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Assume that a membrane permeable to Na+ but not to Cl- separates two solutions. The concentration of sodium chloride on side 1 is higher than on side 2. Which of the following ionic movements would occur? a. Na+ would move until its concentration gradient is dissipated (until the concentration of Na+ on side 2 is the same as the concentration of Na+ on side 1). b. Cl- would move down its concentration gradient from side 1 to side 2. c. A membrane potential, negative on side 1, would develop. d. A membrane potential, positive on side 1, would develop. e. None of the preceding is correct.
Describe the contribution of each of the following to establishing and maintaining membrane potential: (a) the Na+K+ pump, (b) passive movement of K+ across the membrane, (c) passive movement of Na+ across the membrane, and (d) the large intracellular anions.
Vesicle transport occurs between the ER and the Golgi in bothdirections. Let’s suppose a researcher added a drug to cells thatinhibited vesicle transport from the Golgi to the ER but did not affectvesicle transport from the ER to the Golgi. If you observed cellsmicroscopically after the drug was added, what would you expect to seehappen over the course of 1 hour?a. The ER would get smaller, and the Golgi would get larger.b. The ER would get larger, and the Golgi would get smaller.c. The ER and Golgi would stay the same size.d. Both the ER and Golgi would get larger.e. Both the ER and Golgi would get smaller
How does the Na+–K+pump exchange sodium ions forpotassium ions across the plasma membrane? What aresome purposes served by this pump?
For each type of membrane transport, know the following:– Is a transporter protein required? If so, what type?– Is there an energy requirement, and if so, what is the energy source?– What is the relative rate of solute transport based on molecule type? On concentration gradient?– What are examples of the types of solutes transported by carriers and channels?
During an investigation on membrane transport, a researcher exposed bacterial cells to different concentrations of two different solutes: A and B. The rate of transport of each solute into cells isrepresented in the graphSolute ASolute BSolute ConcentrationWhich of the following best explains the greater rate of transport for solute A than for solute B at higher solute concentrations?A Solute A is being transported by simple diffusion, which does not rely on membrane proteins to control the rate of transportSolute A is being transported by active transport, which uses ATP and has higher rates of transport than passive transportSolute A is being transported by facilitated diffusion, which uses membrane proteins to increase the rate of transportRate of Transport
How do proton pumps contribute to membrane potential? Please explain in 3-8 sentences
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Does active transport move high to low concentration?
secondary active transport depends on which of the following principles? a. sodium is pumped out of the cell against a concentration gradient by primary active transport b. sodium moves out of the cell with a concentration gradient c. primary active transport is necessary to pump sodium into the cell from a higher to lower concentration d. diffusion causes sodium to move out of the cell
Na+ moves from high to low concentration, across the plasma membrane, through a protein channel that is permenantly open. Which statement is true about this process? a. It does not require ATP b. It is a form of active transport c. Movement is against the concentration gradient of Na+ d. The channel probably allows many different molecules and ions to cross