Biology
12th Edition
ISBN: 9781259296529
Author: Mader
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 37, Problem 4A
Which of these correctly the distribution of ions on either Side Of axon it is not conducting a nerve impulse?
- more sodium ions (Na+ ) outside and fewer potassium ions (K+) inside
- K+ outside and Na+ inside
- charged proteins outside; Na+ and K+ inside
- charged proteins inside
- Both a and d are correct.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which of these correctly describes the distribution of ions on eitherside of an axon when it is not conducting a nerve signal?a. more sodium ions (Na+) outside and more potassium ions (K+)insideb. more K+ outside and more Na+ insidec. charged protein outside and Na+ and K+ insided. Na+ and K+ outside and water only insidee. chloride ions (Cl−) outside and K+ and Na+ inside
A neuron releases an excitatory neurotransmitter. Some neurons are stimulated and some are not. How is it possible that the same signal activates one neuron and not the other?
When the action potential begins, Na+ gates open, allowing Na+ to cross the membrane. The charge difference across the axon membrane changes to
a.negative outside and positive inside.
b.positive outside and negative inside.
c.neutral outside and positive inside.
d.There is no difference in charge between outside and inside.
Chapter 37 Solutions
Biology
Ch. 37.1 - Prob. 1CYPCh. 37.1 - Prob. 2CYPCh. 37.1 - Prob. 3CYPCh. 37.2 - Prob. 1CYPCh. 37.2 - Prob. 2CYPCh. 37.2 - Prob. 3CYPCh. 37.3 - Prob. 1CYPCh. 37.3 - Prob. 2CYPCh. 37.3 - Prob. 3CYPCh. 37.4 - Prob. 1CYP
Ch. 37.4 - Prob. 2CYPCh. 37.4 - Prob. 3CYPCh. 37 - Prob. 1BS.1QCCh. 37 - Prob. 1BS.2QCCh. 37 - Prob. 1BS.3QCCh. 37 - Prob. 1NS.1QCCh. 37 - Prob. 1NS.2QCCh. 37 - Prob. 1NS.3QCCh. 37 - Prob. 1ACh. 37 - Prob. 2ACh. 37 - Prob. 3ACh. 37 - Which of these correctly the distribution of ions...Ch. 37 - Prob. 5ACh. 37 - Prob. 6ACh. 37 - Prob. 7ACh. 37 - Prob. 8ACh. 37 - Prob. 9ACh. 37 - Prob. 10ACh. 37 - Prob. 11ACh. 37 - Prob. 12ACh. 37 - Prob. 13ACh. 37 - Prob. 14ACh. 37 - Prob. 15ACh. 37 - Prob. 16ACh. 37 - Prob. 17ACh. 37 - Label this diagram of a reflex arc.Ch. 37 - Prob. 1TSCh. 37 - Prob. 2TSCh. 37 - Prob. 3TSCh. 37 - Prob. 4TS
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
- Stellate cells initially process sensory input to the cortex, whereas pyramidal cells send fibers from the cortex to terminate on efferent motor neurons. (True or false)arrow_forwardA neuron responds to adequate stimulation with _______, a type of self-propagating signal.arrow_forwardWatch this video (http://openstaxcollege.org/l/neurotrans) to learn about the release of a neurotransmitter. The action potential reaches the end of the axon, called the axon terminal, and a chemical signal is released to tell the target cell to do something, either initiate a new action potential, or to suppress that activity. In a very short space, the electrical signal of the action potential is changed into the chemical signal of a neurotransmitter, and then back to electrical changes in the target cell membrane. What is the importance of voltage-gated calcium channels in the release of neurotransmitters?arrow_forward
- When action potentials arrive at a synapse between a neuron and another cell, they stimulate the release of molecules of a ________ that diffuse over to that cell.arrow_forwardThe main function of an axon is to... genreate EPSPs or IPSPs when neurotransmitters bind their membranes generate and transmit signals in the form of action potentials function as the biosynthetic center of the neutron form the myelin sheatharrow_forwardWhich of the following would increase the speed of a nerve impulse along an axon?A. Decreasing the spacing between the nodes of the axonB. Decreasing the resistance between nodesC. Decreasing the thickness of the myelin sheathD. Increasing the resting potential of the axonarrow_forward
- What membrane protein of the neuron is responsible for briefly increasing the Na+ permeability of the membrane during the rising phase of the nerve impulse? the sodium-potassium pump the voltage gated potassium channel the voltage gated sodium channel the stimulus gated sodium channel the ligand gated ion channelsarrow_forwardThe absolute refractory period of an action potentialA. only ensures one-way travel down an axon.B. only allows a neuron to ignore a second signal sent that closely follows the first.C. only prevents summation of action potentials within the axonD. ensures one-way travel down an axon and allows a neuron to ignore a second signal sent that closely follows the firstE. ensures one-way travel down an axon, allows a neuron to ignore a second signal sent that closely follows the first, and prevents summation of action potentials within the axonarrow_forwardthe bacterium clostridium tetani produce a toxin called tetanospasmin, the causative agent os the disease tetanus. the toxin prevents the release of inhibitory transmitters in the CNS and so blocks the resulting IPSPs they would normally generate. what are some of the functions of inhibitory synapses? considering this what symptoms would you expect from the disease tetanus, and why? ( hint: imagine trying to stand up if all of the muscles in your lower limb contracted at the same time.)arrow_forward
- Which of the following is FALSE about action potentials? At resting potential, there are more potassium channels open and most sodium channels are closed. Depolarization is due to the flow of Na+ out of the axon via voltage-gated Na+ channels. Hyperpolarization is due to continued loss of K+ from the axon. During repolarization, K+ flows out of the axon along its concentration gradient. Resting membrane potential is primarily established by the Na+/K+ pump.arrow_forwardWhich of the following is NOT an example of communication that happens from one neuron to another neuron? A. Endocrine signaling (ex. hormones secreted into the blood stream travel and bind to receptors on dstant cells). B. Retrograde neurotransmission (ex.the dendrite releases a neuroactive substance that binds to receptors on the axon terminal of a presynaptic neuron). C. Electrical communication via propagation of action potential from one node of ranvier to the next node of ranvier. D. Volume transmission (ex. neuropeptides diffuse away from the synapse and bind to receptors on adjacent cells) E. Electrical communication through gap junctions.arrow_forwardWhen a postsynaptic neuron is adequately stimulated, action potentials develop at the initial segment of the axon because :-a- it contains many voltage-gated Na + channelsb- it contains the highest concentration of ligand-gated cation channelsc- it contains many voltage-gated Ca ++ channelsd- it is more sensitive to the direct stimulant effect of neurotransmittersarrow_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
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
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
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
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
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