Biology : Concepts and Investigations (Loose)
3rd Edition
ISBN: 9780077681005
Author: Hoefnagels
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 26.3, Problem 1MC
Describe the forces that maintain the distribution of K+ and Na+ across the cell membrane in a neuron at rest.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
If extracellular [Na1] is elevated, how would the resting potential and action potential of a neuron change?
Describe the ion concentration gradients across the plasmamembrane of a neuron at resting potential.
At the peak of an action potential, would the relative permeability of Na be higher than K? Which ion would be the least permeable to the membrane during falling phase?
Chapter 26 Solutions
Biology : Concepts and Investigations (Loose)
Ch. 26.1 - Prob. 1MCCh. 26.1 - Prob. 2MCCh. 26.1 - Prob. 3MCCh. 26.2 - Prob. 1MCCh. 26.2 - Where is the myelin sheath located?Ch. 26.2 - Prob. 3MCCh. 26.2 - What are the functions of each of the three...Ch. 26.3 - Describe the forces that maintain the distribution...Ch. 26.3 - Prob. 2MCCh. 26.3 - Prob. 3MC
Ch. 26.3 - Prob. 4MCCh. 26.3 - What prevents action potentials from spreading in...Ch. 26.3 - Prob. 6MCCh. 26.3 - How do myelin and the nodes of Ranvier speed...Ch. 26.4 - Describe the structure of a synapse.Ch. 26.4 - Prob. 2MCCh. 26.4 - Prob. 3MCCh. 26.4 - Prob. 4MCCh. 26.5 - Prob. 1MCCh. 26.5 - Prob. 2MCCh. 26.5 - Prob. 3MCCh. 26.5 - Prob. 4MCCh. 26.6 - Prob. 1MCCh. 26.6 - Prob. 2MCCh. 26.6 - Prob. 3MCCh. 26.6 - Prob. 4MCCh. 26.6 - Prob. 5MCCh. 26.6 - Prob. 6MCCh. 26.6 - List some structures that protect the central...Ch. 26.6 - Prob. 8MCCh. 26.6 - Prob. 9MCCh. 26.7 - 1. Use figure 26.22 to explain how saxitoxin...Ch. 26.7 - Prob. 2MCCh. 26 - Some cells of the central nervous system are...Ch. 26 - Prob. 2MCQCh. 26 - What event triggers an action potential? a....Ch. 26 - Prob. 4MCQCh. 26 - Prob. 5MCQCh. 26 - Damage to the surface tissue of the spinal cord...Ch. 26 - Prob. 7MCQCh. 26 - Describe some invertebrate nervous systems. Why do...Ch. 26 - Prob. 2WIOCh. 26 - Prob. 3WIOCh. 26 - Prob. 4WIOCh. 26 - Write a nonbiological analogy for resting...Ch. 26 - Prob. 6WIOCh. 26 - Prob. 7WIOCh. 26 - Sketch a synapse: label the axon and synaptic...Ch. 26 - Prob. 9WIOCh. 26 - Prob. 10WIOCh. 26 - Prob. 11WIOCh. 26 - Prob. 12WIOCh. 26 - Prob. 13WIOCh. 26 - Cerebral palsy is a nervous system disorder that...Ch. 26 - Traumatic brain injury can occur when a person...Ch. 26 - Prob. 16WIOCh. 26 - Prob. 17WIOCh. 26 - Prob. 18WIOCh. 26 - Prob. 19WIOCh. 26 - Prob. 1PITCh. 26 - Prob. 2PITCh. 26 - Prob. 3PITCh. 26 - PULL IT TOGETHER 4. Acid the somatic, autonomic,...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Some species of bacteria that live at the surface of sediment on the bottom of lakes are capable of using eithe...
Biology: Life on Earth with Physiology (11th Edition)
How does trandlation differ from transcription?
Microbiology: Principles and Explorations
Why is it unlikely that two neighboring water molecules would be arranged like this?
Campbell Biology (10th Edition)
What were the major microbiological interests of Martinus Beijerinck and Sergei Winogradsky? It can be said tha...
Brock Biology of Microorganisms (14th Edition)
Describe Mendels conclusions about how traits are passed from generation to generation.
Concepts of Genetics (12th Edition)
The term ‘spore’.
Biology Science Notebook
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
- Conformational changes in channel proteins brought about by voltage changes are responsible for opening and closing Na+ and K+ gates during the generation of an action potential. (True or false?)arrow_forwardDraw and label an action potential, indicating the ion movements responsible for the rising phase and the falling phase.arrow_forwardDefine an action potential.arrow_forward
- Assume presynaptic excitatory neuron A terminates on a postsynaptic cell near the axon hillock and presynaptic excitatory neuron B terminates on the same postsynaptic cell on a dendrite located on the side of the cell body opposite the axon hillock. Explain why rapid firing of presynaptic neuron A could bring the postsynaptic neuron to threshold through temporal summation, thus initiating an action potential, whereas firing of presynaptic neuron B at the same frequency and the same magnitude of EPSPs may not bring the postsynaptic neuron to threshold.arrow_forwardThe accelerating flow of _______ ions through gated channels across the membrane triggers an action potential. a. potassium b. sodium c. hydrogen d. a and barrow_forwardA common membrane-bound intermediary between the receptor and the effector protein within the plasma membrane is the __________________.arrow_forward
- Describe how the permeability of the axon membrane to Na+ and K+ is regulated and how changes in permeability to these ions affect the membrane potential.arrow_forwardDescribe the action potential in terms of the different functional states of the voltage- gated Na+ membrane channels (Note: there are three states)arrow_forwardWhat is the expected resting membrane potential (in mV) of a neuron that is typical in all ways except for possessing an intracellular potassium concentration of 94 mM and double the normal resting permeability to sodium?arrow_forward
- Describe the changes that occur during the depolarizationand repolarization phases of an action potential.arrow_forwardDescribe the contribution of each of the following to the establishment and maintenance of membrane potential: Part A Na+K+ Pump Passive movement of K+ across the membrane Passive movement of Na+ across the membrane Part B Resting membrane potential is approximately -70mV. Explain what resting membrane potential is and what -70mV refers to.arrow_forwardIf the postsynaptic cell's plasma membrane were to become substantially more permeable to Na+, you would expect the membrane potential to [depolarize, hyperpolarize] __________________. You would expect the membrane potential to depolarize if the extracellular K+ concentration were to [increase, decrease] ______________. a.) hyperpolarize, decrease b.) depolarize, decrease c.) depolarize, decrease d.) hyperpolarize, increasearrow_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 LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
What is cancer? What causes cancer and how is it treated? *UPDATE*; Author: Cancer Treatment Centers of America - CTCA;https://www.youtube.com/watch?v=_N1Sk3aiSCE;License: Standard Youtube License