Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 5, Problem 5U
The movement of water across a membrane is dependent on
a. the solvent concentration.
b. the solute concentration.
c. the presence of carrier proteins.
d. membrane potential.
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Students have asked these similar questions
Passive membrane transport processes include...
a.movement of water from an area of high solute concentration to an area of low concentration
b.consumption of ATP
c.the use of transport proteins when moving substances from areas of low to high concentration
d.movement of a substance down its concentration gradient
For the following modes of transport for membranes, tell whether the flow is with or against chemical potenial. Meaning +deltaG or -deltag
A. Passive Diffusion
B.Faciliated Diffusion
C.Active Transport
The process of “active transport" through a membrane may be described by
which of the following?
A. the movement of ions and small molecules away from regions where they
are in high concentration.
B. the use of energy from ATP to move ions and small molecules into regions
where they are in lower concentration.
C. the plasma membrane engulfs the substance and moves it through the
membrane.
D. the use of energy from ATP to move ions and small molecules against their
concentration gradient.
Chapter 5 Solutions
Biology
Ch. 5 - The fluid mosaic model of the membrane describes...Ch. 5 - What chemical property characterizes the interior...Ch. 5 - The transmembrane domain of an integral membrane...Ch. 5 - The specific function of a membrane within a cell...Ch. 5 - The movement of water across a membrane is...Ch. 5 - If a cell is in an isotonic environment, then a....Ch. 5 - Which of the following is NOT a mechanism for...Ch. 5 - A bacterial cell that can alter the composition of...Ch. 5 - What variable(s) influence(s) whether a nonpolar...Ch. 5 - Which of the following does NOT contribute to the...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the statements about diffusion are true? Select all that apply. A. Solutes diffuse from a region of higher concentration to a region of lower concentration. B. Negatively charged solutes diffuse toward regions of positive charge. C. Positively charged solutes diffuse toward regions of positive charge. D. Solutes diffuse from regions of low concentration to regions of high concentration. E. Lower temperatures will slow rates of diffusion.arrow_forwardWhich of the following is NOT a function of membrane proteins? a.Regulate the passage of ions b.Act as carrier molecules for various solutes c.Act as anchors or stabilizers for the cell membrane d.Storage of cellular nutrientsarrow_forward1.) 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?arrow_forward
- How do electroneutral co-transporters depend on the transmembrane potential? Select one: a. They depend on the transmembrane potential to some extent b. They are completely independent of the transmembrane potential c. They very slightly depend on the transmembrane potential d. They strongly depend on the transmembrane potentialarrow_forwardAssume 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.arrow_forwardDefine the following terms: a. osmosis b. osmotic pressure c. membrane potential d. isotonic solution e. structured waterarrow_forward
- Which of the following describes how osmosis occurs across a cell membrane/ A. Solutes move from an area of high water concentration to an area of low water concentration. B. Water moves from an area of low solute concentration to an area of high solute concentration. C. Both water and solutes move across the cell membrane from an area of high concentration to an area of low concentration. D. Solutes move from an area of low solute concentration to an area of high solute concentration. E. Water moves from an area of high solute concentration to an area of low solute concentration.arrow_forwardWhat can be correctly said of an isotonic intravenous solution? (An isotonic solution): Select one: a. Causes no net movement of water into or out of red blood cells b. Causes water to move out of red blood cells c. Has the same solutes in the same solution concentration as blood plasma d. Causes water to move into red blood cellsarrow_forwardWhich of the following is a way for electrolytes in an aqueous solution to move from an area of high solute concentration to an area of low concentration? O a. Active transport O b. Osmosis O c. Simple diffusion Od. Facilitated diffusion O e. None of thesearrow_forward
- Which of following statements is true? A. Polar molecules cannot simply diffuse across the cell membrane. B. Non-polar molecules cannot simply diffuse across the cell membrane C. Polar molecules cannot enter the extracellular space. D. Non-polar molecules cannot enter the extracellular space.arrow_forwardCompound Sodium Lactate is isotonic solution. this mean that it a. reduces movement of sodium across the membrane b.prevent movement of water across the semi permerable cell membrane c. promotes movement of water out of the cell d. facilitates equal movement of water across the semi permerable cell membranearrow_forwardDescribe and explain the difference between: a. Active and passive transport across a membrane. Give an example (can be broad) of a molecule that crosses a membrane for each mechanism. b. Primary vs secondary active transport. Give an example of a molecule(s) that crosses a membrane for each mechanism.arrow_forward
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