Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 37.2, Problem 1CC
Under what circumstances could ions flow through an ion channel from a region of lower ion concentration to a region of higher ion concentration?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
For an open channel, what factors determine in which direction ions will move through that channel?
A single type of ion may pass through several different typesof channels. Explain the term with an example?
Ions like K+ cannot diffuse directly across the membrane. They need open ion channels to cross the membrane. Explain why.
Chapter 37 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
Ch. 37.1 - Prob. 1CCCh. 37.1 - Describe the basic pathway of information flow...Ch. 37.1 - WHAT IF? How might increased branching of an axon...Ch. 37.2 - Under what circumstances could ions flow through...Ch. 37.2 - WHAT IF? Suppose a cells membrane potential shifts...Ch. 37.2 - Prob. 3CCCh. 37.3 - How do action potentials and graded potentials...Ch. 37.3 - In multiple sclerosis (from the Greek skleros,...Ch. 37.3 - Prob. 3CCCh. 37.3 - WHAT IF? Suppose a mutation caused gated sodium...
Ch. 37.4 - Prob. 1CCCh. 37.4 - Organophosphate pesticides work by inhibiting...Ch. 37.4 - MAKE CONNECTIONS Name one or more membrane...Ch. 37 - What happens when a resting neuron's membrane...Ch. 37 - Prob. 2TYUCh. 37 - Prob. 3TYUCh. 37 - Why are action potentials usually conducted in one...Ch. 37 - Which of the following is a direct result of...Ch. 37 - Suppose a particular neurotransmitter causes an...Ch. 37 - Prob. 7TYUCh. 37 - Prob. 8TYUCh. 37 - DRAW IT Suppose a researcher inserts a pair of...Ch. 37 - Prob. 10TYUCh. 37 - FOCUS ON EVOLUTION An action potential is an...Ch. 37 - Prob. 12TYUCh. 37 - SYNTHESIZE YOUR KNOWLEDGE The rattlesnake alerts...
Additional Science Textbook Solutions
Find more solutions based on key concepts
An obese 55-year-old woman consults her physician about minor chest pains during exercise. Explain the physicia...
Biology: Life on Earth with Physiology (11th Edition)
Practice Problem 1.22 Which of the following alkenes can exist as cis-trans isomers? Write their structures. Bu...
Organic Chemistry
Label each statement about the polynucleotide ATGGCG as true or false. The polynucleotide has six nucleotides. ...
General, Organic, and Biological Chemistry - 4th edition
How does the removal of hydrogen atoms from nutrient molecules result in a loss of energy from the nutrient mol...
SEELEY'S ANATOMY+PHYSIOLOGY
Single penny tossed 20 times and counting heads and tails: Probability (prediction): _______/20 heads ________/...
Laboratory Manual For Human Anatomy & Physiology
Knowledge Booster
Learn more about
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
- The tight binding sites required for ion selectivity should slow the progress of ions through a channel, yet ion channels achieve rapid rates of ion transport. How is this paradox resolved?arrow_forwardUnder what circumstances could ions flow through anion channel from a region of lower ion concentration toa region of higher ion concentration?arrow_forwardHow does the Na+–K+pump exchange sodium ions forpotassium ions across the plasma membrane? What aresome purposes served by this pump?arrow_forward
- Explain why active transport of an ion shows saturation kinetics,whereas transport of an ion through an ion channel does not.arrow_forwardHow do neutral solutes move across the plasma membrane? Can the polarmolecules also move across it in the same way? If not, then how are thesetransported across the membrane?arrow_forwardWhereas electrical currents are carried by electrons in copper wire,they are carried by ions in aqueous solutions. Explain how anactive-transport mechanism can create an electrical current acrossa membrane.arrow_forward
- If an ion has the same concentration on both sides of the membrane, then Eion Will be:arrow_forwardA red blood cell with an intracellular fluid (ICF) concentration of 280 mmol/L, is placed into an environment were the concentration of the extracellular fluid (ECF) is 305 mmol/L. As a result, water will move across the cell/plasma membrane. a) Name the process by which water moves b) Describe the overall direction of movement of the water. Answer choices: (i) From outside the cell to inside the cell (ii) From inside the cell to outside the cell, or (iii) Equally, into and out of the cell iii Explain your reasoning for your answer to part (c). 1In your answer you must describe the environment on both sides of the membrane, and use 3 of the following 4 terms correctly; hypertonic, hypotonic, lower solute concentration, higher solute concentrationn (2pts -Correct use of biological terminology, and correct spelling is essential. Edit View Insert Format Tools Table 12pt v Paragraph BIUA ...arrow_forwardWhat is the Direction of net flux Through Protein Channel?arrow_forward
- 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.arrow_forwarddifference between channels and transporters is that O Only channels allow for the passage of solutes against their electrochemical gradient. OTransporters allow for a greater rate of transport across a membrane than channels do. O Only channels allow for the transport of ions. Transporters must undergo a conformational change upon binding to the solute.arrow_forwardWhich of the following is ther eason why the potassium leaves the cell readily at the peak of the action potential?A) The sodium-potassium pumps work hard to return potassium to the extracellular fluid. B) Diffusion will continue to push potassium into the cell, but electrostatic pressure will move potassium out of the cell. C) Diffusion will push potassium out of the cell, but electrostatic pressure continues to attract potassium to the interior of the cell. D) Both diffusion and electrostatic pressure will cause potassium to exit the cell.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license