Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 5.4, Problem 2CS
Summary Introduction
To determine: The ion gradients which are responsible for the conduction of action potentials across the plasma membrane of a neuron.
Introduction: The action potential is the minimum amount of the charge needed to cause the polarization of a membrane for a very small amount of time. The neurons are in the depolarized state hence action potential is the amount of charge that can cause polarization in the membrane.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
MAKE CONNECTIONS What effect would you expect if you depolarizedthe neurons in the VTA (see Concept 48.3)? Explain.
Please ASAP. Thank you
If the resting membrane potential is -65, give the direction of the flow of Na+, Ca++, K+, and Cl- ion?
Na and Cl flows inside, K and Ca flows outside
K and Ca flows inside, Na and Cl flows outside
Na and K flows inside, Ca and Cl flows outside
Na and Ca flows inside, K and Cl flows outside
WHAT IF? Ouabain, a plant substance used in some cultures topoison hunting arrows, disables the sodium-potassium pump.What change in the resting potential would you expect to seeif you treated a neuron with ouabain? Explain.
Chapter 5 Solutions
Biology
Ch. 5.1 - Core Skill: Modeling The goal of this modeling...Ch. 5.2 - Prob. 1CSCh. 5.3 - Prob. 1CCCh. 5.3 - Prob. 2CCCh. 5.4 - Prob. 1CSCh. 5.4 - Prob. 2CSCh. 5.4 - Lets suppose the inside of a cell has a solute...Ch. 5.5 - What is the purpose of gating?Ch. 5.5 - Prob. 1EQCh. 5.5 - Prob. 2EQ
Ch. 5.5 - Prob. 3EQCh. 5.6 - What is the function of the protein coat?Ch. 5 - Prob. 1TYCh. 5 - Which of the following events can never be...Ch. 5 - Lets suppose an insect, which doesnt maintain a...Ch. 5 - Prob. 4TYCh. 5 - Prob. 5TYCh. 5 - Prob. 6TYCh. 5 - Prob. 7TYCh. 5 - Prob. 8TYCh. 5 - Prob. 9TYCh. 5 - Large particles or large volumes of fluid can be...Ch. 5 - With your textbook closed, draw and describe the...Ch. 5 - Prob. 2CQCh. 5 - Prob. 3CQCh. 5 - Prob. 1COQCh. 5 - With regard to bringing solutes into the cell...
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
- Describe the processes involved in neural signaling: reception, transmission, integration, and action by effectors that brings about the actual response.arrow_forwardTest Your Understanding Know and Comprehend 3. Which of the following occurs first when voltage reaches the threshold level in a neuron plasma membrane? (a) voltageactivated Na+ channels open (b) K+ channels open (c) the membrane hyperpolarizes (d) neurotransmitter is released (e) K+ channels closearrow_forwardQ:1-How graded potential is generated at dendrites and cell body? (Area 1,2,3,4) Q:2-How those graded potential triggered as an action potential at trigger zone?(area 5) Q:3-How this action potential is propagated through the entire axolema (area 6) up to the axon terminal?arrow_forward
- MakE ConnECtIonS name one or more membraneactivities that occur both in fertilization of an egg andin neurotransmission across a synapse (see Figure 47.3).arrow_forwardPlease asap. thanku Qs 3 If the K+ channels are blocked by TEA, which direction does the equilibrium potential for K+ move? And why?arrow_forwardWatch this video (http://openstaxcollege.org/l/summation) to learn about summation. The process of converting electrical signals to chemical signals and back requires subtle changes that can result in transient increases or decreases in membrane voltage. To cause a lasting change in the target cell, multiple signals are usually added together, or summated. Does spatial summation have to happen all at once, or can the separate signals arrive on the postsynaptic neuron at slightly different times? Explain your answer.arrow_forward
- Please ASAP. Thank you Ion Extracellular Concentration (mM) Intracellular Concentration (mM) Na+ 440 50 K+ 20 400 Cl- 560 52 Ca++ 10 1 If the resting membrane potential is -65, give the direction of the flow of Na+, Ca++, K+, and Cl- ion? Na and Cl flows inside, K and Ca flows outside K and Ca flows inside, Na and Cl flows outside Na and K flows inside, Ca and Cl flows outside Na and Ca flows inside, K and Cl flows outsidearrow_forwardFind 2 stories which show the role of astrocytes in synaptic plasticity.arrow_forwardQ2\ A- Predict the consequence ifpresynaptic Act. Pot. In an axon couldnot release sufficient acetylcholine tocause depolarization to threshold in askeletal muscle fiber?arrow_forward
- WHAT IF? Suppose a mutation caused gated sodiumchannels to remain inactivated longer after an actionpotential. How would this affect the frequency at whichaction potentials could be generated? Explain.arrow_forwardPlease ASAP. Thanks Ion Extracellular Concentration (mM) Intracellular Concentration (mM) Na+ 440 50 K+ 20 400 Cl- 560 52 Ca++ 10 1 What is the effect of the addition of extracellular TTX and TEA on equilibrium potential? TTX blocks K channel, and TEA blocks Na Channels. No change in the equilibrium potentail. TTX blocks Na channel and TEA blocks K Channels. The equilibrium potentials become less positive TTX blocks Na channel and TEA blocks K Channels. The equilibrium potential becomes more positive for both TTX blocks Na channel and TEA blocks K Channels. No change in the equilibrium potentail. TTX and TEA blocks Na channel. No change in the equilibrium potentail.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax College
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Anatomy & Physiology
Biology
ISBN:9781938168130
Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher:OpenStax College
Nervous System - Get to know our nervous system a bit closer, how does it works? | Neurology; Author: FreeMedEducation;https://www.youtube.com/watch?v=6O-0CVAgaEM;License: Standard youtube license